CN101723252B - Overhead-traveling installation method of 400t overhead travelling crane replacement equipment - Google Patents
Overhead-traveling installation method of 400t overhead travelling crane replacement equipment Download PDFInfo
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- CN101723252B CN101723252B CN200910117577A CN200910117577A CN101723252B CN 101723252 B CN101723252 B CN 101723252B CN 200910117577 A CN200910117577 A CN 200910117577A CN 200910117577 A CN200910117577 A CN 200910117577A CN 101723252 B CN101723252 B CN 101723252B
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Abstract
一种400吨桥式起重机更换设备高空移动安装方法，步骤是在天车上方的主厂房顶棚预埋一个固定天锚；在固定天锚上挂装倒链；将要更换设备的天车的小车开到天车主梁的一端，并将该台天车全部停电；使用汽车吊将新的主钩电动机、副钩电动机、底座、联轴器和电线电缆等大型设备提升起吊放置到准备更换机电设备的天车主梁上；用两台天车的并车锁链将两台大车链接在一起，再将需要更换设备的那台天车的大车抱闸和小车抱闸全部松开，使该天车的大车和小车均处于无动力并且也无制动的自由状态；用有电的天车拖动需要更换设备的天车纵向移动；手动使需要更换设备的天车就位点横向移动；需要安装设备与就位点位置对正后，落下需要安装设备的进行安装固定。A high-altitude mobile installation method for replacing equipment for a 400-ton bridge crane. The steps are to pre-embed a fixed sky anchor on the roof of the main factory building above the crane; Go to one end of the main girder of the crane, and cut off all the power of the crane; use a truck crane to lift and place the new main hook motor, auxiliary hook motor, base, coupling, wire and cable and other large equipment to the place where the electromechanical equipment is to be replaced. on the main girder of the crane; link the two cranes together with the parallel chains of the two cranes, and then loosen all the brakes of the crane and the trolley of the crane that needs to be replaced, so that the Both the cart and the trolley are in a free state with no power and no brakes; use the powered crane to drag the crane that needs to be replaced to move vertically; manually move the crane to the position that needs to be replaced; it needs to be installed After the equipment is aligned with the seating point, it needs to be installed and fixed when it falls.
Description
Technical field the present invention relates to twin beam overhead bridge crane, and particularly a kind of 400 ton bridge crane machines more move installation method in the exchange device high-altitude.
The background technology twin beam overhead bridge crane is commonly called as overhead traveling crane, is used for the lifting operations such as loading and unloading of installation, decomposition or the material of main equipment.Be widely used in industries such as machinery, electric power, metallurgy, casting.The overhead traveling crane majority is installed on indoor, also can be installed on outdoor.
This hydroelectric power plant's factory building is equipped with two 400t/80t/10t overhead traveling cranes, is generator set and electromechanical appliance maintenance in the factory, the important weight-lifting equipment installed, is that Taiyuan heavy industry Co., Ltd 1966 is produced box twin beam overhead bridge cranes per year.4 chassis groups, the cart that formation can be walked are equipped with in the bottom, 4 angles of its girder.The overhead traveling crane main hook is also referred to as the master and hoists its hoisting weight 400t; Auxiliary hook hoisting weight 80t; Electric block hoisting weight 10t.Major and minor hook is contained on the dolly; Dolly is contained on the girder, and electric block is loaded under the overhead traveling crane one side bridge-type girder.
Because of the maximum hanging piece of overhead traveling crane is a generator amature, lift heavy reaches 750t, surpasses the rated weight capacity of bicycle main hook 400t, needs two overhead traveling cranes and car to lift, so two overhead traveling cranes have been installed in the factory building.
Because the main building finishing, the main building ceiling has reduced 0.4m, and ceiling is than the high 7.5m of cart rail level.Original design monkey upper brace is than the high 4.53m of cart rail level, and like this, the monkey platform has only 2.97m apart from the main building ceiling.
Overhead traveling crane a lot of technological deficiencies and fault occur in more than 40 years use, low like the velocity control accuracy of overhead traveling crane, mechanical specialities is soft, seamlessly transits poor performance during low speed, and starting current is big, and stop position is inaccurate; The operation easier that unit decomposes, cart slightly moves when installing is big, and translation is basic has a little realized not.Technological deficiency that these are intrinsic and potential safety hazard have seriously influenced normally the carrying out of maintenance, erection work of generator set and electromechanical appliance, and to the threat of the security presence impact wreckage of hanging device.In order to eliminate potential safety hazard and the technological deficiency that overhead traveling crane exists, hoisting crane electric system upgrading is carried out in factory department's decision-making.
And the hoist correction of process of the transformation of car variable-frequency control technique, overhead traveling crane main hook mechanism be in the deviation correcting technology improvement project of bias correction technological change and large vehicle walking (being also referred to as operation or translation mechanism) process; Because the electrical panel cabinet of overhead traveling crane need be changed, respectively hoist on the overhead traveling crane, the equipment such as electrical motor, base, coupler and overhead traveling crane main hook electrical motor of traveling gear also need to change.In other words, need old sky vehicle device dismounting and change is got off, also need be with new sky vehicle device installation in position.
But because the main building finishing, the main building ceiling is very little apart from the equipment installing base vertical dimension of overhead traveling crane top dolly end face, has only 2.97m; So the installation of overhead traveling crane electromechanical appliance can not be used traditional wheel crane mode hoisted in position.
Lifting with overhead traveling crane main hook electrical motor is installed as example below, and the narrow of overhead traveling crane electromechanical appliance setting height(from bottom) space is described:
Need the high 285mm of main hook motor base, the high 630mm of electrical motor of installation; Device height refers to that the height that electrical motor adds upper bed-plate surpasses 0.9m; Add the height under hook of hoisting wirerope and wheel crane and the minimum 1.5m of being of height of arm; That is to say that the height during the equipment lifting has surpassed 2.4m.If use wheel crane to lift by crane the electrical motor of captiveing joint with base, electrical motor is not also sling, and the wheel crane arm has only not enough 0.6m apart from the height of main building ceiling.In addition, need adjust the elevation angle angle of wheel crane arm when electrical motor is in place, and need the length of adjustment wheel crane gin pole, these all need take height space.Have only the height space of not enough 0.6m because of the arm summit apart from the main building ceiling, can't satisfy the electrical motor requirement to height space in place at all.Therefore, must adopt other electrical motor mode in place.The present invention i.e. 400 ton bridge crane machines more moves installation method and this difficult point is installed produces for solving the overhead traveling crane electromechanical appliance in the exchange device high-altitude.
Look into new consulting unit-Gansu Province research institute of scientific-technical information through the country-level science and technology in Gansu Province; 14 domestic and abroad computing machines such as Chinese patent abstract data bank, US Pat full-text database, Chinese science technical achievement data bank, SWIC and china academia meeting paper data bank are looked into new website look into new confirmation; 400 ton bridge crane machines provided by the present invention more move installation method in the exchange device high-altitude, do not see identical report at home and abroad in the pertinent literature.
The technical matters that summary of the invention the present invention will solve is to provide a kind of 400 ton bridge crane machines more to move installation method in the exchange device high-altitude.Use the present invention, under the condition that height space is restricted, can improve construction speed, the equipment installation in position of overhead traveling crane.
It is following that the present invention solves the problems of the technologies described above the technical scheme of being taked:
A kind of 400 ton bridge crane machines more move installation method in the exchange device high-altitude, comprise the steps:
1, the pre-buried fixing day anchor of the main building ceiling above overhead traveling crane is also claimed suspension ring; On fixing day anchor, mount jack, also claim chain block;
2, more the dolly of the overhead traveling crane of exchange device reaches an end of overhead traveling crane girder, and this overhead traveling crane is all had a power failure;
3, using wheel crane that main equipments such as new main hook electrical motor, auxiliary hook electrical motor, base, coupler and electric wire are upgraded to hang to be placed into prepares to change on the overhead traveling crane girder of electromechanical appliance;
4, with two overhead traveling cranes and the lock chain two carts are linked at together, will need again more that the cart band-type brake and the dolly band-type brake of that overhead traveling crane of exchange device all unclamp, make cart and the dolly of this overhead traveling crane all be in unpowered and the also free state of brakeless;
5, dragging more with the overhead traveling crane that electricity is arranged, the overhead traveling crane of exchange device vertically moves:
The overhead traveling crane driver operation has the cart of the overhead traveling crane of electricity, and the cart that drags no electric overhead traveling crane promptly needs the more cart of exchange device overhead traveling crane, makes the cart of this overhead traveling crane do forward and backward moving according to along slope coordinate; To need installed device to mention with jack, make equipment requiring installation with regard to the site just in time be in jack mention equipment the lateral coordinates line under;
6, the overhead traveling crane that manually makes exchange device more is with regard to the site side travel:
Adopt the manual jiggering method of coupler between little tramcar motor of manpower switching and the retarder, make dolly do left and right moving according to lateral coordinates, make on the dolly with regard to the site, secured in alignment sky anchor mounts the equipment requiring installation that jack is mentioned; Make equipment requiring installation with regard to the site just in time be in jack mention equipment along slope coordinate line under;
7, with equipment requiring installation with align with regard to the position, site after, the pulling jack falls installing and fixing of equipment requiring installation.
The present invention provides a kind of new installation method for twin beam overhead bridge crane new installation in equipment replacement is accurately in place.
More the used equipment method for dismounting of the hoisting crane of exchange device is identical with the principle of new installation installation method.
Utilize the overhead traveling crane can be at two horizontal direction (x coordinate directions; The y coordinate direction) mobile advantage; Method lifting that combines with wheel crane with chain block and the electromechanical appliance that overhead traveling crane is installed; Solve a lifting and a difficult problem in place in the erection work of overhead traveling crane electromechanical appliance, accomplished the dismounting and the installation in place of large-scale major equipments such as main hook electrical motor, auxiliary hook electrical motor, base, coupler and electric wire.
The present invention has utilized the advantage of having buried suspension ring on original main building ceiling; Suit measures to local conditions; On suspension ring, mount jack; For the electromechanical appliance that solves the overhead traveling crane that had a power failure in the high-altitude in place this difficult point is installed, temporarily be placed on the appropriate location of overhead traveling crane girder after using wheel crane that equipment such as main hook electrical motor, auxiliary hook electrical motor, base, coupler are sling.Made full use of like this plane is lower than trolley platform 2m advantage how on the overhead traveling crane girder; Utilize that the wheel crane work speed is fast, gin pole rotates flexible characteristic; Avoided wheel crane to have only in the main building ceiling height that the gin pole elevation angle is difficult for adjustment, the difficult point that wheel crane can't lift by crane under the environment of not enough 0.6m.
Conventional approach is with wheel crane etc. equipment requiring installation to be moved to regard to the site; The present invention is the spatial altitude that has only not enough 0.6m in the main building ceiling height; Under the situation that wheel crane can't lift by crane; Promptly can not overhead traveling crane be needed installed device; Move after the lifting under the situation in place, the attachment point in place that moves equipment requiring installation is realized the installation in position of new installation.
Like this; Operating range that the ceiling height restricting vehicle hangs in factory building and wheel crane suspension hook reach; And under the stuck-tight rough sledding of ceiling sky anchor; We utilize a wheel crane and a day anchor to mount the hardware device of jack and the installation method that equipment attachment point on the dolly is moved, and have utilized the fast characteristics with conveniently moving of wheel crane lifting speed preferably, and mount jack on the sky anchor and shortened the contradiction that weight-lifting equipment and hoisting sling take up room; Accelerated the installation progress that overhead traveling crane is updated the equipment, completion safely and fast the erection work in place of day vehicle device.
Two 400t/80t/10t overhead traveling cranes are installed in the specific embodiment factory building, and the transformation of car variable-frequency control technique, overhead traveling crane main hook mechanism hoist in the deviation correcting technology improvement project of process; Respectively hoist on the electrical panel cabinet of overhead traveling crane, the overhead traveling crane, the equipment such as electrical motor, base, coupler and overhead traveling crane main hook electrical motor of traveling gear need to change, but the wheel crane arm has only not enough 0.6m apart from the height of main building ceiling.Accomplish the replacing of main equipments such as main hook electrical motor, auxiliary hook electrical motor, base, coupler and electric wire by following step.
1, utilizes a pre-buried fixing day anchor of main building ceiling of overhead traveling crane top; On fixing day anchor, mount jack;
2, more the dolly of the overhead traveling crane of exchange device reaches an end of overhead traveling crane girder, and this overhead traveling crane is all had a power failure;
3, using wheel crane that main equipments such as new main hook electrical motor, auxiliary hook electrical motor, base, coupler and electric wire are upgraded to hang to be placed into prepares to change on the overhead traveling crane girder appropriate location of electromechanical appliance;
4, the also lock chain with two overhead traveling cranes is linked at two carts in the factory building together; To need again more that the cart band-type brake and the dolly band-type brake of that overhead traveling crane of exchange device all unclamp, and make cart and the dolly of this overhead traveling crane all be in unpowered and the also free state of brakeless;
5, dragging more with the overhead traveling crane that electricity is arranged, the overhead traveling crane of exchange device vertically moves:
The overhead traveling crane driver operation has the cart of the overhead traveling crane of electricity, and the cart that drags no electric overhead traveling crane promptly needs the more cart of exchange device overhead traveling crane, makes the cart of this overhead traveling crane do forward and backward moving according to along slope coordinate; To need installed device to mention with jack, make equipment requiring installation with regard to the site just in time be in jack mention equipment the lateral coordinates line under;
6, the overhead traveling crane that manually makes exchange device more is with regard to the site side travel:
Adopt the manual jiggering method of coupler between little tramcar motor of manpower switching and the retarder, make dolly do left and right moving according to lateral coordinates, make on the dolly with regard to the site, secured in alignment sky anchor mounts the equipment requiring installation that jack is mentioned; Make equipment requiring installation with regard to the site just in time be in jack mention equipment along slope coordinate line under;
7, with equipment requiring installation with align with regard to the position, site after, the pulling jack falls installing and fixing of equipment requiring installation.
The equipment of this overhead traveling crane uses the same method after accomplishing again, changes the equipment of another overhead traveling crane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910117577A CN101723252B (en) | 2009-11-11 | 2009-11-11 | Overhead-traveling installation method of 400t overhead travelling crane replacement equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910117577A CN101723252B (en) | 2009-11-11 | 2009-11-11 | Overhead-traveling installation method of 400t overhead travelling crane replacement equipment |
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| CN101723252A CN101723252A (en) | 2010-06-09 |
| CN101723252B true CN101723252B (en) | 2012-09-05 |
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| CN200910117577A Active CN101723252B (en) | 2009-11-11 | 2009-11-11 | Overhead-traveling installation method of 400t overhead travelling crane replacement equipment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267664B (en) * | 2011-05-27 | 2013-07-03 | 中国一冶集团有限公司 | Method for installing bridge crane using load-supporting roof beam for hoisting and usage thereof |
| CN102489984B (en) * | 2011-12-23 | 2014-02-12 | 中国一冶集团有限公司 | The method of quickly replacing the driving beam without using the crane for construction |
| CN102556853B (en) * | 2011-12-31 | 2014-03-19 | 攀钢集团工程技术有限公司 | Metallurgical crane dismantling method |
| CN102849626B (en) * | 2012-09-24 | 2014-12-31 | 中国建筑第八工程局有限公司 | Indoor non-standard crane installation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55151491A (en) | 1979-05-14 | 1980-11-26 | Hitachi Kiden Kogyo Kk | Method of mounting upper and lower portion of overhead travelling crane |
| GB2106854A (en) * | 1981-09-29 | 1983-04-20 | Nukem Gmbh | An apparatus for lifting up remote handling equipment |
| SU1227590A1 (en) * | 1980-10-16 | 1986-04-30 | Феб Швермашиненбау-Комбинат Эрнст Тельманн Магдебург (Инопредприятии) | Movable joint of overhead travelling crane span and end girders |
| JP2003192282A (en) * | 2001-12-28 | 2003-07-09 | Aichi Corp | Aerial work vehicle |
-
2009
- 2009-11-11 CN CN200910117577A patent/CN101723252B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55151491A (en) | 1979-05-14 | 1980-11-26 | Hitachi Kiden Kogyo Kk | Method of mounting upper and lower portion of overhead travelling crane |
| SU1227590A1 (en) * | 1980-10-16 | 1986-04-30 | Феб Швермашиненбау-Комбинат Эрнст Тельманн Магдебург (Инопредприятии) | Movable joint of overhead travelling crane span and end girders |
| GB2106854A (en) * | 1981-09-29 | 1983-04-20 | Nukem Gmbh | An apparatus for lifting up remote handling equipment |
| JP2003192282A (en) * | 2001-12-28 | 2003-07-09 | Aichi Corp | Aerial work vehicle |
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Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121120 |
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Effective date of registration: 20121120 Address after: Sichuan Road 731600 in Gansu County of Yongjing province Liujiaxia town No. 13 Patentee after: Gansu Electric Power Corporation, Liujiaxia Hydropower Plant Patentee after: State Grid Corporation of China Address before: Sichuan Road 731600 in Gansu County of Yongjing province Liujiaxia town No. 13 Patentee before: Gansu Electric Power Corporation, Liujiaxia Hydropower Plant |