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A construction method suitable for the installation of multiple large motors using hydraulic lifting devices

A technology of hydraulic lifting and construction methods, which is applied in the direction of centering/balancing rotors, etc., which can solve the problems of no work tasks, 10t single-girder cranes cannot meet the installation work of the main motor, and high cost, so as to reduce the damage of finished products and stabilize the position Good performance and stable structure

Active Publication Date: 2022-02-25
CHINA MCC 2 GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Taking the R1 rough rolling mill as an example, the main motor is arranged between the main motor spans (11) and (12). The rated power of the main motor is 4750KW, the weight of the stator is 68000KG, and the weight of the rotor is 90000KG. The installation is mainly completed by the collapsed crane, but the reality is that the main motor span is only designed with a 10t single-girder crane, and the 10t single-girder crane cannot meet the installation work of the main motor because this area is an independent area. A crown crane that meets the installation conditions is expensive and has no work tasks after it is put into production

Method used

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  • A construction method suitable for the installation of multiple large motors using hydraulic lifting devices
  • A construction method suitable for the installation of multiple large motors using hydraulic lifting devices
  • A construction method suitable for the installation of multiple large motors using hydraulic lifting devices

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Embodiment Construction

[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] see figure 1 , figure 1 It shows the flow chart of the construction method provided by this embodiment, which is applicable to the installation of mu...

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Abstract

The invention provides a construction method applicable to the installation of multiple large motors using a hydraulic lifting device. The method includes the following steps: a confirmation step, confirming the loading direction and sequence of equipment with the motor manufacturer; the hoisting step of the first main motor , first hoist each structure of the first main motor, unloading and hoisting of each structure are carried out by hydraulic hoist; for other main motor hoisting steps, follow the hoisting steps of the first main motor, and then hoist other main motors in turn, Until all main motors are hoisted. Compared with other installation methods, the construction method provided by the present invention does not require a crane, which avoids the problems of using a crane to install the equipment, which is risky and easy to be damaged, and the construction site is narrow and the construction is difficult. It requires multiple large-tonnage cranes to install and the number of motors is large and the cost is huge. , The motor has good stability in place and is not limited by time, which effectively solves the problems of large number of installations, large equipment tonnage, precise installation requirements, and unfavorable crane hoisting equipment.

Description

technical field [0001] The invention relates to the technical field of installation and construction of metallurgical machinery and equipment, in particular to a construction method suitable for installation of multiple large motors using a hydraulic lifting device. Background technique [0002] In metallurgical machinery installation projects, some large-scale mechanical equipment cannot be installed with bridge cranes that meet the construction requirements due to the narrow construction site and independent area settings, and due to the high quality of the installed equipment, high installation accuracy, and poor road conditions at the construction site, etc. The reason is that it is necessary to use two or more cranes for installation, which brings a lot of inconvenience and troubles to the engineering installation and costs a lot. [0003] For example, in the 2250mm rolling mill project of Baotou Steel's new system, the main rolling span is designed with two areas, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/16
CPCH02K15/16
Inventor 李旭王国伟张小利
Owner CHINA MCC 2 GRP CO LTD
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