Internal mouthpiece copper liner tensioning mechanism

Abstract

The utility model discloses a kind of copper lining tensioning mechanisms of inner counterpiece, including two symmetrically arranged copper linings, the lower of two copper linings is provided with base plate, the both sides of base plate are symmetrically provided with baffle, the copper lining is between two baffles, the baffle is connected through bolt between the upper bottom plate being arranged below it, the lower of upper bottom plate is provided with lower bottom plate, the upper bottom plate is connected through pin shaft between lower bottom plate, torsional spring is arranged between the lower bottom plate and upper bottom plate, the torsional spring is sleeved on the outside of pin shaft, the lower bottom plate is connected with tensioning block, this copper lining tensioning mechanism of inner counterpiece can be conveniently disassembled, and worn parts are quickly replaced, shorten maintenance cycle, ensure stable operation of equipment, while avoiding copper lining to appear abrasion in the process of tensioning and retracting, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of pipeline butt welding technology, specifically to a copper lining tensioning mechanism for an inner butt joint device. Background Technology

[0002] With the increasing demand for pipeline construction, the development of pipeline construction technology has placed higher demands on the quality and efficiency of pipeline construction. Pipeline end-jointing devices have become key equipment on long-distance pipeline construction sites. During pipeline welding, if the back of the weld pool is suspended, defects such as wire threading, incomplete melting, and poor weld back formation are prone to occur. The emergence of copper-lined tensioning mechanisms can seal the gaps between welds, restrict the shape of the weld pool, and ensure good weld quality, thereby improving construction efficiency and quality.

[0003] The existing copper liner tensioning mechanism is cumbersome to install, has a complex structure, and is difficult to replace when parts are worn, resulting in long equipment downtime and increased maintenance costs. In addition, the existing tensioning mechanism is prone to damaging the copper liner during the tensioning and retraction process, affecting the service life. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a copper liner tensioning mechanism for an inner fitting, which can be easily disassembled, worn parts can be quickly replaced, maintenance cycles can be shortened, and wear of the copper liner can be avoided during tensioning and retraction. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal aligner copper liner tensioning mechanism, comprising two symmetrically arranged copper liners, a base plate disposed directly below the two copper liners, baffles symmetrically arranged on both sides of the base plate, the copper liners located between the two baffles, the baffles being bolted to an upper base plate disposed below them, a lower base plate disposed below the upper base plate, the upper base plate and the lower base plate being connected by a pin, a torsion spring being disposed between the lower base plate and the upper base plate, the torsion spring being sleeved on the outside of the pin, and the lower base plate being connected to a tensioning block.

[0006] As a preferred embodiment of this invention, a plurality of springs are provided between the substrate and the copper substrate.

[0007] As a preferred technical solution of this utility model, each baffle is provided with two protrusions, and the two protrusions are respectively located in the grooves on the side of each copper liner.

[0008] In a preferred embodiment of this invention, the substrate and the baffle are connected by bolts.

[0009] As a preferred embodiment of this utility model, a limiting pin is provided on the upper surface of the lower base plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The copper liner tensioning mechanism of this internal aligner is reasonably designed and ingeniously conceived. Through the bolt connection between the baffle and the base plate, the detachable connection between the baffle and the upper base plate, and the pin connection between the upper base plate and the lower base plate, the installation and disassembly of the entire tensioning mechanism is extremely convenient. When parts wear out during daily use, the damaged parts can be replaced individually, which reduces maintenance costs and shortens downtime, effectively ensuring the continuous and stable operation of the equipment and providing reliable support for production. At the same time, the addition of a torsion spring between the upper base plate and the lower base plate can provide torque when the tensioning device retracts, causing the copper liner to slide outwards and inwards respectively, avoiding damage to the copper liner during the retraction process and extending the service life of the copper liner. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is another structural schematic diagram of the present invention;

[0013] Figure 3 This is a schematic diagram of the structure of this utility model after the copper liner has been removed;

[0014] Figure 4 This is the front view of the present utility model;

[0015] Figure 5 for Figure 4 Sectional view at point AA;

[0016] Figure 6 This is a schematic diagram of the retracted state of this utility model;

[0017] Figure 7 This is a schematic diagram of the supported state of this utility model.

[0018] In the diagram: 1. Copper liner, 2. Spring, 3. Limit pin, 4. Baffle, 5. Base plate, 6. Upper base plate, 7. Torsion spring, 8. Lower base plate, 9. Pin. Detailed Implementation

[0019] 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 (for ease of description and understanding, hereinafter referred to as...). Figure 4 (The above is described above). Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figure 1-7This utility model provides a technical solution: an inner fitting copper liner tensioning mechanism, including two symmetrically arranged copper liners 1. The copper liners 1 have an arc-shaped structure to facilitate contact with the inner wall of the pipe. A base plate 5 is arranged directly below the two copper liners 1. Baffles 4 are symmetrically arranged on both sides of the base plate 5. The copper liners 1 are located between the two baffles 4, which restrict the back-and-forth movement of the copper liners 1. The baffles 4 are bolted to an upper base plate 6 located below them. A lower base plate 8 is arranged below the upper base plate 6. The upper base plate 6 and the lower base plate 8 are connected by a pin 9. A torsion spring 7 is arranged between the lower base plate 8 and the upper base plate 6. The torsion spring 7 is sleeved on the outside of the pin 9. The torsion spring 7 provides torque when the tensioning mechanism retracts, causing the copper liners 1 to slide outward and inward respectively, avoiding damage to the copper liners 1 during the retraction process. The lower base plate 8 is connected to a tensioning block on the machine head through a mounting hole. The tensioning mechanism is synchronously linked with the lifting and retraction of the tensioning block.

[0021] Furthermore, multiple springs 2 are provided between the substrate 5 and the copper substrate 1. Multiple corresponding mounting holes are provided on the upper surface of the substrate 5 and the lower surface of the copper substrate 1 for mounting the springs 2. One end of the spring 2 located in the substrate 5 is fixed by bolts. By providing the springs 2, the impact and vibration between the copper substrate 1 can be reduced and absorbed.

[0022] Furthermore, each baffle 4 is provided with two protrusions, which are located in the grooves on the side of each copper liner 1. The copper liner 1 can be positioned by the cooperation between the protrusions and the grooves.

[0023] To facilitate quick disassembly of the substrate 5 and the baffle 4, the substrate 5 and the baffle 4 are connected by bolts.

[0024] To prevent the copper liner 1 from swinging too far and failing to return to its initial position, a limit pin 3 is provided on the upper surface of the lower base plate 8. When the copper liner 1 swings, the limit pin 3 prevents the upper base plate 6 from continuing to swing, thereby controlling the swing angle of the copper liner 1.

[0025] In pipeline welding operations, the internal alignment tensioning mechanism of this invention adopts a unique arc-shaped design, which can fit tightly against the inner wall of the pipeline to form a fully enclosed protective structure. This effectively blocks molten iron, welding flux crystals, and spatter generated during the welding process, preventing them from entering the pipeline and eliminating the generation of weld beads and burrs from the source. Through its modular structure, installation and disassembly are extremely simple, greatly saving manpower and time costs and improving maintenance efficiency.

[0026] The parts of the utility model not described in detail are prior art. Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tensioning mechanism for the copper liner of an inner fitting device, characterized in that: It includes two symmetrically arranged copper bushings (1), a base plate (5) is arranged directly below the two copper bushings (1), baffles (4) are symmetrically arranged on both sides of the base plate (5), the copper bushings (1) are located between the two baffles (4), the baffles (4) are connected to the upper base plate (6) arranged below them by bolts, a lower base plate (8) is arranged below the upper base plate (6), the upper base plate (6) and the lower base plate (8) are connected by a pin (9), a torsion spring (7) is arranged between the lower base plate (8) and the upper base plate (6), the torsion spring (7) is sleeved on the outside of the pin (9), and the lower base plate (8) is connected to a tensioning block.

2. The inner fitting copper liner tensioning mechanism according to claim 1, characterized in that: Multiple springs (2) are provided between the substrate (5) and the copper substrate (1).

3. The inner fitting copper liner tensioning mechanism according to claim 1, characterized in that: Each baffle (4) has two protrusions, which are located in the grooves on the side of each copper liner (1).

4. The inner fitting copper liner tensioning mechanism according to claim 1, characterized in that: The substrate (5) and the baffle (4) are connected by bolts.

5. The inner fitting copper liner tensioning mechanism according to claim 1, characterized in that: The upper surface of the lower base plate (8) is provided with a limit pin (3).

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