CN109274232B - Hydraulic gantry crane core-penetrating installation method for large motor - Google Patents
Hydraulic gantry crane core-penetrating installation method for large motor Download PDFInfo
- Publication number
- CN109274232B CN109274232B CN201811450252.9A CN201811450252A CN109274232B CN 109274232 B CN109274232 B CN 109274232B CN 201811450252 A CN201811450252 A CN 201811450252A CN 109274232 B CN109274232 B CN 109274232B
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- core
- place
- hoisting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to the field of installation and construction of large motors, in particular to a core penetrating installation method of a hydraulic gantry crane for a large motor; the method is characterized in that: the method comprises the following steps of 1, core penetrating preparation; step 2, installing a hydraulic gantry crane; step 3, installing the stator in place; step 4, threading the rotor; and 5, hoisting the motor in place. The installation method adopts the hydraulic gantry crane to carry out core penetrating and installation work of the main motor of the large-scale rolling mill, solves the technical problem that core penetrating assembly and installation of the main motor are in place under the condition that a workshop travelling crane cannot meet the hoisting requirement, ensures that all units of the gantry crane run synchronously, stably slide and penetrate, safely put in place and the like, has the characteristics of low installation cost, short construction period, safe, stable and efficient operation compared with the traditional truck crane in hoisting and core penetrating installation of the hydraulic gantry crane, saves the use cost and labor cost of large-scale machinery, improves the economic benefit and has wide applicability.
Description
Technical Field
The invention relates to the field of installation and construction of large motors, in particular to a core penetrating installation method of a hydraulic gantry crane for a large motor.
Background
The main motor is a power output system of the rolling mill and plays a vital role in a rolling production line, the main motor of the large-scale aluminum plate strip rolling mill is generally supplied in a split mode and needs to be assembled in a core penetrating mode on site, and the whole weight of the main motor exceeds 150t after the main motor is assembled; in order to reduce the investment and the operation and maintenance cost, a construction party generally only considers a travelling crane for overhauling a main motor, and the crane for overhauling has small lifting capacity and often cannot meet the lifting requirement when the main motor is installed, so that how to efficiently implement the installation operation of the large motor during construction is still needed to be researched.
Disclosure of Invention
The invention aims to provide an efficient large-scale motor installation method.
In order to achieve the above object, the present invention is realized by:
a hydraulic gantry crane core-penetrating installation method for a large motor; comprises that
Step 1, core penetrating preparation: determining the sequence of the installation process, checking the hoisting weight and the hoisting height, correctly selecting a hoisting rigging, determining a core penetrating mode according to the field situation, contacting with an equipment manufacturer, and determining the loading directions of the stator and the rotor according to requirements;
step 2, installing a hydraulic gantry crane: gantry crane walking rail mounted is in motor both sides from top to bottom, and the motor is worn the core installation track and need to be arranged 30m, and the track is the track installation center in using the motor, and the gauge is 12m and arranges, and the track levelness requirement: 1/1000mm, the total length is less than 3mm, the track parallelism is 1/1000mm, and the height of the track is adjusted and tamped by using a steel plate; after the tracks are laid, sequentially mounting the hydraulic gantry cranes on the traveling tracks, injecting clean 46# anti-wear hydraulic oil, performing power connection debugging, and preparing to start unloading and core penetrating work after stabilization;
step 3, stator installation in place: after the motor bottom plate is installed and the front bearing seat and the rear bearing seat are installed in place, hoisting the stator in place by using a hydraulic gantry crane, and adjusting the center and the level;
step 4, rotor core penetration: after the stator is installed in place, the core penetrating work of the rotor is carried out, and the extension shaft is assembled before the core penetrating work; hanging steel wire ropes at the positions where the force can be applied on the two sides of the rotor shaft, and hanging the steel wire ropes on the hanging beam; adjusting the steel wire rope to enable the steel wire rope to be vertical to the axis of the rotor; hoisting the rotor and penetrating the rotor into the stator; exposing an extension shaft at the other side of the stator, well cushioning two ends of the rotor by using steel piers, cushion blocks, brackets and the like, and loosening steel wire ropes; then the inner hoisting point is changed to the dummy shaft; after the hoisting point is changed, the rotor core is inserted in place, when the stator core and the rotor core are completely overlapped, a sleeper frame is used for adjusting the cushion to ensure the gap between the sleeper frame and the stator, then a steel wire rope is used for hanging the sleeper frame on the stator, 4 30-ton chain blocks are used for adjusting the rotor, and the whole body is hoisted in place to the aligned base and the aligned bearing seat;
step 5, hoisting the motor in place: and after the core penetration of the stator and the rotor is finished, the motor is integrally hoisted in place by adopting a hydraulic gantry crane.
The installation method adopts the hydraulic gantry crane to carry out core penetrating and installation work of the main motor of the large-scale rolling mill, solves the technical problem that core penetrating assembly and installation are in place of the main motor under the condition that a workshop travelling crane cannot meet the hoisting requirement, ensures that all units of the gantry crane run synchronously, stably slide and penetrate the core, are safely in place and the like, has the characteristics of low installation cost, short construction period, safe, stable and efficient operation compared with the traditional truck crane in hoisting and core penetrating installation of the hydraulic gantry crane, saves the use cost and the labor cost of large-scale machinery, provides economic benefits, and has wide applicability.
Detailed Description
The invention is further illustrated by the following specific examples.
A hydraulic gantry crane core-penetrating installation method for a large motor; comprises that
Step 1, core penetrating preparation: determining the sequence of the installation process, checking the hoisting weight and the hoisting height, correctly selecting a hoisting rigging, determining a core penetrating mode according to the field situation, contacting with an equipment manufacturer, and determining the loading directions of the stator and the rotor according to requirements;
step 2, installing a hydraulic gantry crane: gantry crane walking rail mounted is in motor both sides from top to bottom, and the motor is worn the core installation track and need to be arranged 30m, and the track is the track installation center in using the motor, and the gauge is 12m and arranges, and the track levelness requirement: 1/1000mm, the total length is less than 3mm, the track parallelism is 1/1000mm, and the height of the track is adjusted and tamped by using a steel plate; after the tracks are laid, sequentially mounting the hydraulic gantry cranes on the traveling tracks, injecting clean 46# anti-wear hydraulic oil, performing power connection debugging, and preparing to start unloading and core penetrating work after stabilization;
step 3, stator installation in place: after the motor bottom plate is installed and the front bearing seat and the rear bearing seat are installed in place, hoisting the stator in place by using a hydraulic gantry crane, and adjusting the center and the level;
step 4, rotor core penetration: after the stator is installed in place, the core penetrating work of the rotor is carried out, and the extension shaft is assembled before the core penetrating work; hanging steel wire ropes at the positions where the force can be applied on the two sides of the rotor shaft, and hanging the steel wire ropes on the hanging beam; adjusting the steel wire rope to enable the steel wire rope to be vertical to the axis of the rotor; hoisting the rotor and penetrating the rotor into the stator; exposing an extension shaft at the other side of the stator, well cushioning two ends of the rotor by using steel piers, cushion blocks, brackets and the like, and loosening steel wire ropes; then the inner hoisting point is changed to the dummy shaft; after the hoisting point is changed, the rotor core is inserted in place, when the stator core and the rotor core are completely overlapped, a sleeper frame is used for adjusting the cushion to ensure the gap between the sleeper frame and the stator, then a steel wire rope is used for hanging the sleeper frame on the stator, 4 30-ton chain blocks are used for adjusting the rotor, and the whole body is hoisted in place to the aligned base and the aligned bearing seat;
step 5, hoisting the motor in place: and after the core penetration of the stator and the rotor is finished, the motor is integrally hoisted in place by adopting a hydraulic gantry crane.
The installation method adopts the hydraulic gantry crane to carry out core penetrating and installation work of the main motor of the large-scale rolling mill, solves the technical problem that core penetrating assembly and installation of the main motor are in place under the condition that a workshop travelling crane cannot meet the hoisting requirement, ensures that all units of the gantry crane run synchronously, stably slide and penetrate, safely put in place and the like, has the characteristics of low installation cost, short construction period, safe, stable and efficient operation compared with the traditional truck crane in hoisting and core penetrating installation of the hydraulic gantry crane, saves the use cost and labor cost of large-scale machinery, improves the economic benefit and has wide applicability.
Claims (1)
1. A hydraulic gantry crane core-penetrating installation method for a large motor; the method is characterized in that: comprises that
Step 1, core penetrating preparation: determining the sequence of the installation process, checking the hoisting weight and the hoisting height, correctly selecting a hoisting rigging, determining a core penetrating mode according to the field situation, contacting with an equipment manufacturer, and determining the loading directions of the stator and the rotor according to requirements;
step 2, installing a hydraulic gantry crane: gantry crane walking rail mounted is in the both sides of motor from top to bottom, and motor cross core mounting rail's length needs to arrange 30 meters, and the track uses the motor center to arrange for the track installation center, and the gauge is 12 meters, and the track levelness requirement: 0.01mm/m, the total length is less than 3mm, the track parallelism is 0.01mm/m, and the height of the track is adjusted and tamped by using a steel plate; after the tracks are laid, sequentially mounting the hydraulic gantry cranes on the traveling tracks, injecting clean 46# anti-wear hydraulic oil, performing power connection debugging, and preparing to start unloading and core penetrating work after stabilization;
step 3, stator installation in place: after the motor bottom plate is installed and the front bearing seat and the rear bearing seat are installed in place, hoisting the stator in place by using a hydraulic gantry crane, and adjusting the center and the levelness of the stator;
step 4, rotor core penetration: after the stator is installed in place, the core penetrating work of the rotor is carried out, and the extension shaft is assembled before the core penetrating work; hanging steel wire ropes at the positions where the force can be applied on the two sides of the rotor shaft, and hanging the steel wire ropes on the hanging beam; adjusting the steel wire rope to enable the steel wire rope to be vertical to the axis of the rotor; hoisting the rotor and penetrating the rotor into the stator; exposing the extension shaft on the other side of the stator, well cushioning two ends of the rotor by using steel piers, cushion blocks and a bracket, and loosening a steel wire rope; then the inner hoisting point is changed to the dummy shaft; after the hoisting point is changed, the rotor core is inserted in place, when the stator core and the rotor core are completely overlapped, a sleeper frame is used for adjusting the cushion to ensure the gap between the rotor and the stator, then a steel wire rope is used for hanging the stator, the center and the levelness of the rotor are adjusted by using 4 30-ton chain blocks, and the whole assembled rotor and stator is hoisted in place to the aligned base and bearing seat;
step 5, hoisting the motor in place: and after the core penetration of the stator and the rotor is finished, the motor is integrally hoisted in place by adopting a hydraulic gantry crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811450252.9A CN109274232B (en) | 2018-11-30 | 2018-11-30 | Hydraulic gantry crane core-penetrating installation method for large motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811450252.9A CN109274232B (en) | 2018-11-30 | 2018-11-30 | Hydraulic gantry crane core-penetrating installation method for large motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109274232A CN109274232A (en) | 2019-01-25 |
| CN109274232B true CN109274232B (en) | 2021-01-19 |
Family
ID=65187167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811450252.9A Active CN109274232B (en) | 2018-11-30 | 2018-11-30 | Hydraulic gantry crane core-penetrating installation method for large motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109274232B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299804B (en) * | 2019-07-18 | 2021-03-16 | 马鞍山马钢电气修造有限公司 | On-site core penetrating method for large main transmission motor |
| CN115448155A (en) * | 2022-08-18 | 2022-12-09 | 鞍钢建设集团有限公司 | Installation method for enabling installation position of main motor of rolling mill to exceed travel limit of travelling crane hook head |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257238A (en) * | 2008-04-10 | 2008-09-03 | 中国第一冶金建设有限责任公司 | Method for electric motor with stationary rotor to on site penetrate rotor |
| CN101277049A (en) * | 2007-03-28 | 2008-10-01 | 中国第二十冶金建设公司 | Method for core-crossing hanging large-scale motor hydraulic ram lifting |
| CN102983684A (en) * | 2011-09-07 | 2013-03-20 | 五冶集团上海有限公司 | Installation method of split base seat high speed long shaft big motor |
| CN204906130U (en) * | 2015-08-19 | 2015-12-23 | 中国一冶集团有限公司 | Motor punching device |
-
2018
- 2018-11-30 CN CN201811450252.9A patent/CN109274232B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101277049A (en) * | 2007-03-28 | 2008-10-01 | 中国第二十冶金建设公司 | Method for core-crossing hanging large-scale motor hydraulic ram lifting |
| CN101257238A (en) * | 2008-04-10 | 2008-09-03 | 中国第一冶金建设有限责任公司 | Method for electric motor with stationary rotor to on site penetrate rotor |
| CN102983684A (en) * | 2011-09-07 | 2013-03-20 | 五冶集团上海有限公司 | Installation method of split base seat high speed long shaft big motor |
| CN204906130U (en) * | 2015-08-19 | 2015-12-23 | 中国一冶集团有限公司 | Motor punching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109274232A (en) | 2019-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102306979B (en) | Core pulling and threading method for overhauling of large motor | |
| CN109274232B (en) | Hydraulic gantry crane core-penetrating installation method for large motor | |
| CN103726421B (en) | Height and span adjustable track paver for metro construction | |
| CN103669133A (en) | Hydraulic sleeper replacement machine and hydraulic sleeper replacement method | |
| CN101486091A (en) | Integral replacing method of ladle turret with limited upper lifting space | |
| CN101880006A (en) | Roll-on device and method for large fixed type rotary crane | |
| CN107253673A (en) | A kind of Architectural Equipment hanging apparatus | |
| CN110127530A (en) | For hanging apparatus and its application method in restricted clearance workshop | |
| CN102857037A (en) | Large motor installing method | |
| CN112030777B (en) | Descending movable formwork support bracket crossing type transfer construction method | |
| CN104942564A (en) | Mounting method of large-tonnage pin on jib of offshore shipborne jib type crane | |
| CN212292641U (en) | Vertical external guide short-stroke hydraulic semi-continuous casting machine | |
| CN205063366U (en) | Portal displacement device | |
| CN105317031B (en) | A kind of ship lift main equipment room bridge main beam hanging method | |
| CN201660835U (en) | Dragline dynamic compactor | |
| CN111139742B (en) | Method for mounting and dismounting highway bridge girder erection machine | |
| CN203976242U (en) | A kind of generator unit stator associating hanging apparatus | |
| CN109595011B (en) | Two-lining trolley assembly scheme for large-section subway station tunnel | |
| CN102887415B (en) | Elevator | |
| CN207243262U (en) | The hanging apparatus of generating set electricity generator stator | |
| CN110847060A (en) | Big portal tension trolley | |
| CN215854716U (en) | Lifting device and system for track area | |
| CN217813431U (en) | Convenient fixing device of cable logging pulley | |
| CN110299804B (en) | On-site core penetrating method for large main transmission motor | |
| CN104045003A (en) | Generator stator lifting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |