CN114873470B - Method for hoisting in four-beam bridge crane factory building - Google Patents
Method for hoisting in four-beam bridge crane factory building Download PDFInfo
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- CN114873470B CN114873470B CN202210564445.7A CN202210564445A CN114873470B CN 114873470 B CN114873470 B CN 114873470B CN 202210564445 A CN202210564445 A CN 202210564445A CN 114873470 B CN114873470 B CN 114873470B
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- crane
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention discloses a method for hoisting a four-beam bridge crane in a factory building, which relates to a building hoisting technology and comprises the following steps: 1. hoisting a main beam A; 2. hoisting the auxiliary beam and the end beam; 3. hoisting an auxiliary trolley; 4. the main trolley supporting device is installed; 5. hoisting a main trolley; 6. hoisting the main beam B; the temporary travelling wheel at one end of the auxiliary beam is slightly lower than the normal mounting elevation, so that the jack is matched with the main beam B to be connected with the combined body of the end beam and the auxiliary beam; the elevation of the main trolley supporting device is slightly lower than the normal installation elevation, so that the main trolley supporting device can be conveniently removed after the main beam B is installed. The invention fully utilizes the characteristics of the four-beam bridge crane, solves the lifting problem of the main trolley and the end beam and auxiliary beam combination which are easy to clamp, has no aerial connection point, is safe and reliable in construction, can realize the lifting work of the crane in a small space, has relatively smaller lifting capacity requirement on the crane, and saves cost.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a method for hoisting a four-beam bridge crane in a factory building.
Background
Along with the increasing demands of industrial factory building capacity upgrading, factory building transformation, equipment replacement and the like, engineering such as transformation, addition, displacement and the like of large cranes in factory buildings are also becoming more common. Because the space in the factory building is limited, the distance between the top of the crane rail and the lower chord of the roof truss is short, and the volume and the weight of the bridge crane are large, especially the bridge width of the four-beam bridge crane is large, so that the hoisting radius and the hoisting height of the crane are very large when the four-beam crane is hoisted. The conventional installation and dismantling are carried out, the roof is required to be dismantled, and the mast of the large crane extends out of the roof, so that the hoisting radius and the hoisting height of the bridge crane are met. According to the method, not only can the hoisting requirement be met by a large-tonnage crane, but also a large-area roof needs to be dismantled, the dismantling difficulty is high, the risk is high, and the normal production in the original industrial factory building is greatly influenced.
Disclosure of Invention
Aiming at the technical problems in the background art, the invention provides a method for realizing the hoisting in a four-beam bridge crane factory building at the top without dismantling the factory building roof, and in order to realize the purposes, the invention provides the following technical scheme:
the invention discloses a hoisting method in a four-beam bridge crane factory building, which is implemented according to the following steps:
Step one, hoisting a main beam A
1.1 And assembling the main beam A and a pair of travelling wheels on the ground to form a whole, and penetrating the pin shaft.
1.2 A main beam A and the travelling wheels are integrally hoisted into position by a crane;
Step two, hoisting the auxiliary beam and the end beam
2.1 Assembling the auxiliary beam and the end beam into a whole on the ground, checking the installation dimensions such as diagonal lines, gauges and the like, and then screwing the installation bolts of the auxiliary beam and the end beam.
2.2 A pair of auxiliary wheels are arranged below the end, connected with the main beam B, of the end beam, and after the auxiliary wheels are installed, the height of the end beam is slightly lower than the actual installation height;
2.3 And (3) integrally hoisting the auxiliary beam and the end beam into position by using a crane, and connecting the combined body of the auxiliary beam and the end beam with the main beam A by using high-strength bolts. At this time, one end of the bridge is supported by the travelling wheels on the main beam A, and the other end is supported by a pair of auxiliary wheels.
Hoisting auxiliary trolley
3.1 The weight of the auxiliary trolley is not large, and the auxiliary trolley can be integrally hoisted in place by a crane;
3.2 After the auxiliary trolley is lifted in place, the auxiliary trolley is pulled to one side of the travelling crane, and a stop block is arranged below the travelling wheel of the auxiliary trolley to prevent the auxiliary trolley from moving.
Step four, mounting a main trolley supporting device
4.1 And manufacturing a main trolley supporting device by using the section steel. The device below the main trolley support is fixed on the auxiliary trolley, and the upper part is supported below the main trolley frame. The main trolley supporting device should be manufactured in advance.
4.2 And (3) hoisting the main trolley supporting device on the auxiliary trolley by using a crane, and welding firmly.
4.3 The height of the main trolley supporting device is calculated, and the main trolley is enabled to be slightly higher than the actual installation height after being installed on the main trolley supporting device by a method of additionally arranging a cushion block at the upper end of the supporting device, so that the main beam B is convenient to be connected with the end beam.
Step five, hoisting the main trolley
5.1 Hoisting the main trolley into position by using a crane, wherein one end of the main trolley is placed on a track of the main beam A, and the other end of the main trolley is supported on a cushion block of a main trolley supporting device;
5.2 Considering that the main trolley has larger weight, the main trolley can be hoisted in a plurality of pieces, and the main trolley frame, the speed reducer, the motor and the like can be hoisted after being disassembled according to the performance of the crane.
Step six, hoisting the main beam B
6.1 And the main beam B and the other pair of travelling wheels are assembled into a whole on the ground, and the pin shaft is penetrated.
6.2 And hoisting the main beam B to a travelling rail by using a crane, and then pulling the main beam B to a position connected with the end beam by using a chain block.
6.3 By the cooperation of the jack, the end beam is slightly jacked up to be connected with the main beam B, the mounting bolt is screwed down, and the auxiliary wheel is removed.
6.4 The main trolley is jacked up by the jack, the backing plate is pulled out, the jack is loosened, the other end of the main trolley falls on the main beam B, the main trolley is removed, and the main trolley supporting device is lifted down by the crane.
As a further improvement of the technical scheme of the invention, one end of the end beam needs to be supported by an auxiliary wheel, and the elevation of the end beam is about 10mm lower than the actual installation elevation.
As a further improvement of the technical scheme of the invention, the jack is a hydraulic jack, and the lifting capacity of a single hydraulic jack is more than 1.2 times of a theoretical calculation value.
As a further improvement of the technical scheme of the invention, the auxiliary wheel is formed by reforming wheels matched with crane rails, and can be reformed by using spare parts of wheels of a crane.
As a further improvement of the technical scheme of the invention, the main trolley supporting device is manufactured by using section steel and is qualified by structural inspection, thereby meeting the requirement of bearing the main trolley.
As a further improvement of the technical solution of the present invention, in the fourth step, after the main trolley is mounted on the main trolley supporting device, the wheels of the main trolley originally fixed on the main beam B should be about 30mm higher than the actual mounting height.
As a further improvement of the technical scheme of the invention, the cushion block above the main trolley supporting device is composed of two blocks, wherein one block has the same height as the jack, and the other block has the height of about 50mm.
As a further improvement of the technical scheme of the invention, the distance from the upper surface of the main trolley supporting device to the lower surface of the main trolley is about 50mm greater than the total height of the hydraulic jack, so that the cushion block can be conveniently removed and the main trolley can be in place by using the hydraulic jack.
Compared with the prior art, the invention has the beneficial effects that:
According to the method for hoisting the four-beam bridge crane in the factory building, disclosed by the invention, the auxiliary wheels are additionally arranged below the end beams, so that the four-beam bridge crane can be stably supported and can move in a small amount under the condition of lacking one main beam; by additionally arranging the main trolley supporting device on the auxiliary trolley, the main trolley can be hoisted in place under the condition of lacking one main beam. Through the measures, the main beam at one side can be finally hoisted, and the hoisting height and the hoisting radius of the four-beam bridge crane during hoisting are greatly reduced.
The method for hoisting the bridge crane adopts a method for finally hoisting the main beam on one side of the bridge crane, so that the main trolley, the end beam and the auxiliary beam cannot be clamped during hoisting, and the method is suitable for hoisting the crane under the condition of limited space of the same kind. The invention can directly hoist in the factory building, can greatly reduce the hoisting radius and the hoisting height, can finish the hoisting work by selecting a relatively smaller crane, has very small influence on the normal production in the original industrial factory building, has shorter period, can save cost, solves the difficult problem that the four-beam bridge crane in the factory building is difficult to hoist, and ensures the progress, the quality and the safety of the four-beam bridge crane.
In summary, the invention provides a brand new construction sequence for hoisting the four-beam bridge crane in the factory building, can greatly reduce the hoisting radius and hoisting height, can finish hoisting work by selecting a relatively smaller crane, has very small influence on normal production in the original industrial factory building, has a shorter period, can save cost, solves the difficult problem of difficult hoisting of the four-beam bridge crane in the factory building, and ensures the progress, quality and safety of the hoisting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
FIG. 1 is a schematic view of the installation of a primary cart support frame of the present invention;
FIG. 2 is a schematic view of the primary cart of the present invention in a hoisted-in-place configuration
FIG. 3 is a schematic view of the completion of the hoisting of the crane according to the invention
In the figure: 1-a main beam A; 2-combination one; 3-auxiliary trolley; 4-a primary trolley; 5-a main beam B; 6-a main trolley supporting device; 7-auxiliary wheels.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the method for hoisting in a four-beam bridge crane factory building of the present invention is implemented according to the following steps:
Step one, hoisting a main beam A
1.1 Assembling the main beam A1 and a pair of travelling wheels on the ground to form a whole, and penetrating a pin shaft;
1.2 Using a crane to integrally hoist the main beam A1 and the travelling wheels in place;
Step two, hoisting the auxiliary beam and the end beam
2.1 Assembling the auxiliary beam and the end beam on the ground to form a whole body as a combined body I2, checking the installation dimensions such as diagonal lines, track gauges and the like, and then screwing the installation bolts of the auxiliary beam and the end beam;
2.2 A pair of auxiliary wheels 7 are arranged below the end, connected with the main beam B5, of the end beam, and the height of the end beam is 10mm lower than the actual mounting height after the auxiliary wheels 7 are mounted;
2.3 The first assembly 2 is integrally hoisted in place by a crane, and the first assembly 2 is connected with the main beam A by a high-strength bolt; at this time, one end of the integral bridge is supported by the travelling wheels on the main beam A, and the other end is supported by a pair of auxiliary wheels 7;
Hoisting auxiliary trolley
3.1 The weight of the auxiliary trolley 3 is not large, and the auxiliary trolley 3 is hoisted in place integrally by a crane;
3.2 After the auxiliary trolley 3 is hoisted in place, the auxiliary trolley 3 is pulled to one side of the travelling crane, and a stop block is arranged below the travelling wheel of the auxiliary trolley 3 to prevent the auxiliary trolley 3 from moving;
Step four, mounting a main trolley supporting device
4.1 Manufacturing a main trolley supporting device 6 by using the section steel; the lower part of the main trolley supporting device 6 is fixed on the auxiliary trolley 3, and the upper part is supported below the frame of the main trolley 4; the main trolley supporting device 6 should be manufactured on the ground in advance;
4.2 Hoisting the main trolley supporting device 6 to the auxiliary trolley 3 by using a crane, and firmly welding;
4.3 The height of the main trolley supporting device 6 is calculated, and the main trolley 4 is arranged on the main trolley supporting device 6 by adding a cushion block at the upper end of the supporting device, so that the main beam B5 is convenient to connect with an end beam, and the main trolley is 30mm higher than the actual installation height;
Step five, hoisting the main trolley
5.1 Hoisting the main trolley 4 into position by using a crane, wherein one end of the main trolley 4 is placed on a track of the main beam A, and the other end of the main trolley is supported on a cushion block of the main trolley supporting device 6;
5.2 Considering that the main trolley 4 has larger weight, the main trolley is hoisted in pieces, and the main trolley frame, the speed reducer, the motor and the like can be hoisted after being disassembled according to the performance of the crane;
Step six, hoisting the main beam B
6.1 The main beam B5 and the other pair of travelling wheels are assembled into a whole on the ground, and the pin shaft is penetrated.
6.2 Hoisting the main beam B5 to a travelling rail by using a crane, and pulling the main beam B5 to a position connected with the end beam by using a chain block;
6.3 By the cooperation of the jack, slightly jacking the end beam to connect the end beam with the main beam B5, screwing up the mounting bolt, and dismantling the auxiliary wheel 7;
6.4 The main trolley 4 is jacked up by the jack, the backing plate is pulled out, the jack is loosened, the other end of the main trolley 4 falls on the main beam B5, the main trolley 4 is removed, and the main trolley supporting device 6 is lifted down by the crane.
One end of the end beam is required to be supported by an auxiliary wheel 7, and the elevation of the end beam is 10mm lower than the actual installation elevation;
The jack is a hydraulic jack, and the lifting capacity of the single hydraulic jack is 1.2 times of the theoretical calculation value. The auxiliary wheel 7 is formed by reforming wheels matched with crane rails, and can be reformed by using spare parts of wheels of a crane. The main trolley supporting device 6 is manufactured by using section steel and is qualified through structural inspection, so that the requirement of bearing the main trolley is met. The spacer above the main trolley support 6 should consist of two blocks, one of which should be at the same height as the jack and the other of which should be at about 50mm. The distance from the upper surface of the main trolley supporting device 6 to the lower surface of the main trolley is about 50mm greater than the total height of the hydraulic jack, so that the cushion block can be conveniently removed and the main trolley can be in place by using the hydraulic jack.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (6)
1. A hoisting method in a four-beam bridge crane factory building is characterized by comprising the following steps of: the hoisting method is carried out according to the following steps:
Step one, hoisting the main beam A (1)
1.1 At least one pair of travelling wheels is arranged at the bottom of the main beam A (1), and the main beam A (1) and the travelling wheels are combined at the ground through pin shafts;
1.2 A crane is adopted to integrally hoist the main beam A (1) and the travelling wheels in place;
Step two, hoisting the auxiliary beam and the end beam
2.1 Assembling the auxiliary beam and the end beam into a first assembly (2) at the ground, checking the installation dimensions of diagonal lines and gauges, and locking and connecting the auxiliary beam and the end beam through installation bolts;
2.2 An auxiliary wheel (7) is arranged at the bottom side of the connection between the end beam and the main beam B (5), and the height of the end beam is 10-90 mm lower than the drawing mark height after the auxiliary wheel (7) is arranged;
2.3 Hoisting the first assembly (2) into position integrally by adopting a crane, and connecting the first assembly (2) and the main beam A (1) in a reinforced way by adopting a high-strength bolt; at the moment, a bridge is formed by a main beam A (1), a main beam B (5) and a first combination body (2), one end of the bridge is supported by a travelling wheel on the first combination body (2), and the other end of the bridge is supported by an auxiliary wheel (7);
Hoisting of the auxiliary trolley (3)
Hoisting the whole auxiliary trolley (3) to a bridge by adopting a crane, pulling the auxiliary trolley (3) to one side of the crane after the auxiliary trolley (3) is hoisted to the position, and arranging a stop block below the travelling wheel of the auxiliary trolley (3) to prevent the auxiliary trolley (3) from moving;
Step four, mounting a main trolley supporting device (6)
4.1 The main trolley supporting device (6) is made of profile steel, the main trolley supporting device (6) is lifted to the auxiliary trolley (3) by a crane, the main trolley supporting device (6) is fixedly arranged on the auxiliary trolley (3), and the upper part of the main trolley supporting device (6) is connected with the lower part of a frame of the main trolley (4);
4.2 The main trolley supporting device (6) is suitable for lifting to a position, which is 30-80 mm higher than the drawing marking height, of one end of the lifting main trolley (4) so as to facilitate the connection of the main beam B (5) and the end beam;
step five, hoisting the main trolley (4)
Hoisting the main trolley (4) into position by adopting a crane, so that one end of the main trolley (4) is placed on a track on the upper surface of the main beam A (1), and the other end of the main trolley is placed on a main trolley supporting device (6);
Step six, hoisting the main beam B (5)
6.1 A walking wheel is arranged at the bottom of the main beam B (5), and the walking wheel and the main beam B (5) are assembled on the ground;
6.2 Hoisting the main beam B (5) to a travelling rail by using a crane, and then pulling the main beam B (5) to a position connected with an end beam by using a chain block;
6.3 Jacking up the end beam by 40-100 mm through the cooperation of the jack, connecting the end beam with the main beam B (5), tightening the mounting bolt, and dismantling the auxiliary wheel (7);
6.4 Jacking up the main trolley (4) through the jack, withdrawing the base plate, loosening the jack, enabling the other end of the main trolley (4) to fall onto the main beam B (5), removing the main trolley (4), and lifting down the main trolley supporting device (6) by using the crane.
2. A method of hoisting a four-girder bridge crane house according to claim 1, characterized in that one end of the end girder is supported by auxiliary wheels (7) at a level about 10mm lower than the actual installation level.
3. The hoisting method in the four-beam bridge crane factory building according to claim 1, wherein one end of the main trolley (4) is supported on the main beam A (1), the other end is temporarily supported on the auxiliary trolley (3), and a main trolley supporting device (6) is additionally arranged between the auxiliary trolley (3) and the main trolley (4).
4. The hoisting method in the four-beam bridge crane factory building according to claim 1, wherein the main beam B (5) is located behind the main trolley (4), the auxiliary trolley (3) and the first combination (2) respectively, so that the hoisting radius of the main trolley (4), the auxiliary trolley (3) and the first combination (2) is reduced.
5. The hoisting method in the four-beam bridge crane factory building according to claim 1, wherein when the main trolley (4) is hoisted, a crane station is positioned at one side of a travelling crane, the main trolley (4) is hoisted to the other side, the long side of the main trolley (4) is avoided, and the hoisting radius is reduced.
6. The method for hoisting the four-beam bridge crane in the factory building according to claim 1, wherein the hoisting of all the components of the four-beam bridge crane is completed in the factory building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210564445.7A CN114873470B (en) | 2022-05-23 | 2022-05-23 | Method for hoisting in four-beam bridge crane factory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210564445.7A CN114873470B (en) | 2022-05-23 | 2022-05-23 | Method for hoisting in four-beam bridge crane factory building |
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| CN114873470A CN114873470A (en) | 2022-08-09 |
| CN114873470B true CN114873470B (en) | 2024-05-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267664A (en) * | 2011-05-27 | 2011-12-07 | 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 |
| CN105152032A (en) * | 2015-09-08 | 2015-12-16 | 中国十七冶集团有限公司 | Installing method for bridge crane in enclosed environment workshop |
| CN110902573A (en) * | 2019-11-01 | 2020-03-24 | 上海宝冶集团有限公司 | Off-line installation method of cast metallurgy four-beam bridge crane |
| CN112249915A (en) * | 2020-09-27 | 2021-01-22 | 上海宝冶集团有限公司 | Large bridge crane hoisting method for closed occasions of factory buildings |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013150172A1 (en) * | 2012-04-03 | 2013-10-10 | Calisto Oy | Bridge crane assembly and a method for installing the same |
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2022
- 2022-05-23 CN CN202210564445.7A patent/CN114873470B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267664A (en) * | 2011-05-27 | 2011-12-07 | 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 |
| CN105152032A (en) * | 2015-09-08 | 2015-12-16 | 中国十七冶集团有限公司 | Installing method for bridge crane in enclosed environment workshop |
| CN110902573A (en) * | 2019-11-01 | 2020-03-24 | 上海宝冶集团有限公司 | Off-line installation method of cast metallurgy four-beam bridge crane |
| CN112249915A (en) * | 2020-09-27 | 2021-01-22 | 上海宝冶集团有限公司 | Large bridge crane hoisting method for closed occasions of factory buildings |
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