Auxiliary lifting appliance for vertical lifting of pipeline

Abstract

The utility model discloses an auxiliary lifting appliance for vertical lifting of a pipeline, which relates to the technical field of metallurgical mechanical equipment and comprises a centering positioning sleeve and lifting arms, shaft holes are arranged on the lifting arms, the two lifting arms are hinged through a pin shaft, the centering positioning sleeve is vertically arranged, and the top end of the centering positioning sleeve is connected with the pin shaft of the lifting arms through a lifting plate. The problems that the overhaul and maintenance efficiency is low, the operation intensity of maintainers is large, and the safety risk of the maintainers is large are solved.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical machinery and equipment technology, and in particular to an auxiliary lifting tool for vertical pipe hoisting. Background Technology

[0002] During the installation, maintenance and replacement of pipelines, it is common to encounter situations where two pipelines are vertically aligned and hoisted in the air. This requires pipeline workers to position the pipe ends in the air. Traditional hoisting methods use traction ropes to position the pipelines, which results in poor pipeline stability, high workload for workers and safety risks. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a vertical lifting auxiliary tool for pipelines, which solves the problems of low maintenance efficiency, high workload for maintenance personnel, and high safety risks.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A vertical lifting auxiliary lifting device for pipelines is characterized by comprising two booms, which are hinged to each other by a pin to form an X-shaped structure. The tops of the two booms can be connected to lifting equipment, and the bottoms are respectively provided with clamping heads so that the bottoms of the two booms can clamp the pipeline being lifted. A centering and positioning sleeve is vertically arranged inside the two booms, and the two side walls of the centering and positioning sleeve are respectively connected to the pin by a lifting plate.

[0006] It also includes two return springs, which are respectively set on both sides of the centering positioning sleeve.

[0007] The beneficial effects of this utility model are as follows: During hoisting, the centering and positioning sleeve held by the hoisting plate is inserted into the steel pipe to be hoisted. The clamping head of the boom holds the outer skin of the steel pipe. The upper part of the clamping head is aligned with the lower edge of the flange. Under the action of the return spring, the boom centers and holds the steel pipe, and will not release naturally. The centering and positioning sleeve greatly restricts the displacement of the steel pipe during hoisting and installation, improves stability, reduces the workload of maintenance personnel, and ensures the safety of maintenance personnel. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0009] Figure 2 This is a schematic diagram of the planar structure of this utility model.

[0010] Attached reference numerals: 1. Hanging plate, 2. Pin, 3. Return spring, 4. Centering and positioning sleeve, 5. Clamping head, 6. Boom, 7. Lifting pipe. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0013] like Figure 1 , Figure 2 As shown, a vertical pipe hoisting auxiliary lifting device is characterized by comprising two booms 6, which are hinged to each other in an X-shape by a pin 2. The tops of the two booms 6 can be connected to the hoisting equipment, and the bottoms are respectively provided with clamping heads 5, so that the bottoms of the two booms 6 can clamp the hoisting pipe 7. A centering and positioning sleeve 4 is vertically arranged inside the two booms 6, and the two side walls of the centering and positioning sleeve 4 are respectively connected to the pin 2 by a lifting plate 1.

[0014] like Figure 1 , Figure 2 As shown, it also includes two return springs 3, which are respectively set on both sides of the centering positioning sleeve 4.

[0015] In use, the centering and positioning sleeve 4, held by the lifting plate 1 of this tool, is inserted into the steel pipe to be lifted. The lifting arm 6 is opened so that the clamping head 5 holds the outer skin of the steel pipe. At this time, the upper part of the clamping head 5 is installed in conjunction with the lower edge of the flange. Under the action of the return spring 3, the lifting arm 6 centers and holds the steel pipe, and will not release naturally, maintaining the position of the lifted object. The two uppermost lifting points are subjected to upward force, and through the action of the pin, the scissor-shaped lifting arm lifts the pipe through the clamping head and lifts it to the installation position, completing the installation tasks of pipe lifting, transportation, and butt welding.

[0016] The clamping head 5 is made of a material with a high coefficient of friction, and the clamping head 5 is designed with an arc shape, so that clamping heads 5 with different arcs can be replaced according to the size of the steel pipe to be lifted on site.

[0017] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A vertical lifting auxiliary tool for pipelines, characterized in that, It includes two booms (6), which are hinged to each other by a pin (2) to form an X-shaped structure. The top of the two booms (6) can be connected to the hoisting equipment, and the bottom is provided with a clamping head (5) so that the bottom of the two booms (6) can clamp the hoisting pipe (7). The two booms (6) are vertically provided with a centering and positioning sleeve (4), and the two side walls of the centering and positioning sleeve (4) are connected to the pin (2) by a hanging plate (1).

2. The auxiliary lifting device for vertical pipe hoisting according to claim 1, characterized in that, It also includes two return springs (3), which are respectively set on both sides of the centering positioning sleeve (4).

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