CN212334427U

CN212334427U - Bridge crane

Info

Publication number: CN212334427U
Application number: CN202020588307.9U
Authority: CN
Inventors: 罗贤勇; 林燕; 施海云; 杨劲; 向魁; 仲伟龙; 李志敏; 徐达前; 张怀强
Original assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Current assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-01-12
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a bridge crane, which comprises a double-beam bridge, a first trolley mechanism and a second trolley mechanism, wherein the first trolley mechanism and the second trolley mechanism are arranged on the double-beam bridge in a sliding way, and a cantilever crane device is arranged at the bottom of the double-beam bridge; the first trolley mechanism comprises a first trolley frame arranged on the double-beam bridge in a sliding manner, and a first hoisting assembly arranged on the first trolley frame and used for hoisting a heavy object below 300 t; the second trolley mechanism comprises a second trolley frame arranged on the double-beam bridge in a sliding mode, a supporting device arranged on the second trolley frame and a second hoisting assembly arranged on the supporting device and used for hoisting a heavy object below 100t, and the second hoisting assembly is higher than the first hoisting assembly in the vertical direction. The bridge crane of the utility model can effectively reduce the roof elevation of the main factory building and save the construction cost; meanwhile, the maintenance of a single rail or temporary measures with poor stability can be avoided, and the cost is saved.

Description

Bridge crane

Technical Field

The utility model relates to a hoist technical field, concretely relates to bridge crane.

Background

For a nuclear power plant, a main plant of a steam turbine is one of core buildings of the nuclear power plant, and most of main equipment of the steam turbine, main process pipelines of a thermodynamic system and cables are intensively arranged in the main plant of the steam turbine. The steam turbine owner factory building has mainly arranged steam turbine, generator, Moisture Separator Reheater (MSR), oxygen-eliminating device, bypass valve group, oxygen-eliminating device recirculating pump etc. generally realizes lifting by crane installation and maintenance through the hoist of steam turbine owner factory building when the installation.

The MSR has two structural forms of a vertical structure and a horizontal structure, and the MSR with the two structural forms needs to take out or put in an MSR inner pipe bundle in the installation and maintenance processes. And both the bundle removal and loading operations need to be accomplished using the main building crane. As can be seen from fig. 1, the height of the lifting hook required by the vertical MSR2 'is high, and when the conventional crane 1' is used for operation, the installation height of the crane needs to be raised, so that on one hand, the installation height of the crane is increased, and in order to ensure stability, the structural beam column needs to be correspondingly increased, thereby increasing the civil engineering investment cost; on the other hand, the installation height of the crane is increased, and even the roof height needs to be raised, so that the roof height of the main plant is obviously increased, and the construction cost is increased.

In addition, the hoisting range of the crane can cover the range of the main plant as large as possible, but due to the structural limitation of the crane, the crane cannot cover individual areas, so that the equipment needs to be hoisted by a monorail crane or temporary measures, and the inconvenience in installation or maintenance is caused.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing a bridge crane, it can effectively solve conventional hoist among the prior art when hoist and mount vertical MSR, need raise the mounting height of hoist, raises the roof height even, and then leads to the main building roof height to obviously increase, the construction cost rises and because the limitation of hoist structure, needs to hang or interim measure through the single track realizes the hoist and mount of equipment to lead to installation or inconvenient problem of overhauing.

In order to achieve the above object, the present invention provides a bridge crane, which comprises a double-beam bridge, a first trolley mechanism and a second trolley mechanism, wherein the first trolley mechanism and the second trolley mechanism are slidably arranged on the double-beam bridge, and a cantilever crane device is arranged at the bottom of the double-beam bridge;

the first trolley mechanism comprises a first trolley frame arranged on the double-beam bridge in a sliding manner, and a first hoisting assembly arranged on the first trolley frame and used for hoisting a heavy object below 300 t; the second trolley mechanism comprises a second trolley frame arranged on the double-beam bridge in a sliding mode, a supporting device arranged on the second trolley frame and a second hoisting assembly arranged on the supporting device and used for hoisting a heavy object below 100t, and the second hoisting assembly is higher than the first hoisting assembly in the vertical direction.

Furthermore, a first slide rail is paved on the double-beam bridge, and the first trolley frame and the second trolley frame are both connected to the first slide rail in a sliding manner.

Furthermore, the cantilever crane device comprises a base, a suspension arm and a crane, wherein the base is slidably arranged at the bottom of the double-beam bridge, one end of the suspension arm is rotatably connected to the base through a rotating shaft, and the other end of the suspension arm is provided with the crane.

Furthermore, a second sliding rail is arranged at the bottom of the double-beam bridge, and the base is connected to the second sliding rail in a sliding manner.

Further, the hanging piece is a hoist.

The double-beam bridge is characterized by further comprising two end beams which are arranged in parallel, the double-beam bridge is transversely and horizontally arranged between the two end beams, and two ends of the double-beam bridge are fixedly connected with the top ends of the end beams.

Further, the double-beam bridge comprises a first main beam and a second main beam which are arranged in parallel, and the first sliding rail is arranged on each of the first main beam and the second main beam; the second slide rail is arranged at the bottom of the first main beam or the second main beam.

The utility model provides a bridge crane compares in prior art, has following technological effect:

by design, the bridge crane of the utility model comprises a double-beam bridge, a first trolley mechanism and a second trolley mechanism, wherein the first trolley mechanism and the second trolley mechanism are arranged on the double-beam bridge in a sliding way; the first trolley mechanism comprises a first trolley frame arranged on the double-beam bridge in a sliding manner, and a first hoisting assembly arranged on the first trolley frame and used for hoisting a heavy object below 300 t; the second trolley mechanism comprises a second trolley frame arranged on the double-beam bridge in a sliding manner, a supporting device arranged on the second trolley frame and a second hoisting component arranged on the supporting device and used for hoisting a heavy object below 100 t; therefore, the second hoisting component can be controlled to hoist the vertical MSR specially, and the hoisting weight of the second hoisting component is lower than that of the first hoisting component, so that the overall structure of the second hoisting component is lighter than that of the first hoisting component, the mounting height of the first hoisting component can be reduced, the cross section size of a structural beam column supporting the crane can be reduced correspondingly, and the construction cost is reduced; meanwhile, the second hoisting assembly is arranged on the supporting device, and the height of the second hoisting assembly in the vertical direction is higher than that of the first hoisting assembly, so that the hoisting upper limit of the second hoisting assembly is improved, the roof does not need to be excessively lifted while the mounting and overhauling requirements of the MSR are met, the roof elevation of the main plant is reduced, and the construction cost is saved. In addition, through the bottom of two roof beam crane span structures is equipped with the cantilever crane device to can avoid the relatively poor maintenance single track of stability in use or temporary measure, save the cost, shorten the installation and the maintenance time of equipment, effectively reduce the maintenance cost, promote the operation security of whole crane unit simultaneously, further improve the economic nature in the power plant life cycle and the holistic aesthetic property of factory building.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

Fig. 1 is a schematic structural diagram of a crane provided in the related art when the crane hoists an MSR;

fig. 2 is a first schematic structural diagram of a bridge crane according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a bridge crane according to an embodiment of the present invention.

The lifting device comprises a double-beam bridge frame 1, a double-beam bridge frame 11, a first main beam 12, a second main beam 13, a first sliding rail 14, a second sliding rail 2, a first trolley mechanism 21, a first trolley frame 22, a first lifting component 3, a second trolley mechanism 31, a second trolley frame 32, a supporting device 33, a second lifting component 4, a cantilever lifting device 41, a base 42, a lifting arm 43, a lifting piece 5, an end beam 6 and a structural beam column.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 2 and fig. 3, the bridge crane according to this embodiment includes a double-beam bridge 1, a first trolley mechanism 2 and a second trolley mechanism 3, the first trolley mechanism 2 and the second trolley mechanism 3 are slidably disposed on the double-beam bridge 1, and a cantilever crane device 4 is disposed at the bottom of the double-beam bridge 1;

the first trolley mechanism 2 comprises a first trolley frame 21 arranged on the double-beam bridge frame 1 in a sliding manner, and a first hoisting assembly 22 arranged on the first trolley frame 21 and used for hoisting a heavy object below 300 t; the second trolley mechanism 3 comprises a second trolley frame 31 arranged on the double-beam bridge frame 1 in a sliding manner, a supporting device 32 arranged on the second trolley frame 31, and a second hoisting component 33 arranged on the supporting device 32 and used for hoisting a heavy object below 100t, wherein the second hoisting component 33 is higher than the first hoisting component 22 in the vertical direction;

by design, the bridge crane of the utility model comprises a double-beam bridge frame 1, a first trolley mechanism 2 and a second trolley mechanism 3, wherein the first trolley mechanism 2 and the second trolley mechanism 3 are arranged on the double-beam bridge frame 1 in a sliding way; the first trolley mechanism 2 comprises a first trolley frame 21 arranged on the double-beam bridge frame 1 in a sliding manner, and a first hoisting assembly 22 arranged on the first trolley frame 21 and used for hoisting a heavy object below 300 t; the second trolley mechanism 3 comprises a second trolley frame 31 arranged on the double-beam bridge frame 1 in a sliding manner, a supporting device 32 arranged on the second trolley frame 31, and a second hoisting component 33 arranged on the supporting device 32 and used for hoisting a heavy object below 100 t; therefore, the second hoisting component 33 can be controlled to hoist the vertical MSR specially, and the hoisting weight of the second hoisting component 33 is lower than that of the first hoisting component, so that the overall structure of the second hoisting component is lighter than that of the first hoisting component 22, the installation height of the first hoisting component can be reduced, the size of the cross section of the structural beam column 6 for supporting the crane can be reduced correspondingly, and the construction cost is reduced; meanwhile, the second hoisting assembly is arranged on the supporting device 32, and the height of the second hoisting assembly 33 in the vertical direction is higher than that of the first hoisting assembly 22, so that the hoisting upper limit of the second hoisting assembly is improved, the roof does not need to be excessively raised while the mounting and overhauling requirements of the MSR are met, the roof elevation of the main plant is reduced, and the construction cost is saved. In addition, through the bottom of two roof beam crane span structures 1 is equipped with cantilever crane and puts 4 to can avoid the relatively poor maintenance single track of stability in use or temporary measure, save the cost, shorten the installation and the maintenance time of equipment, effectively reduce the maintenance cost, promote the operation security of whole crane unit simultaneously, further improve the economic nature in the power plant full life cycle and the holistic aesthetic property of factory building.

Specifically, in the embodiment of the utility model, first travelling wheel is installed to the bottom of first carriage 21, first lifting unit 22 includes main hoisting component and vice hoisting component, main hoisting component includes first drive arrangement, first reel is arranged to one side of first drive arrangement, just first drive arrangement is connected with first reduction gears through first drive assembly, the drive of first reduction gears first reel rotates, and cooperate first reel in install first fixed pulley group on the first carriage 21, first fixed pulley group hangs the lifting hook through wire rope and first together and is connected. The auxiliary hoisting assembly comprises a first operation driving device and a first hoisting driving device, the first operation driving device drives the first travelling wheel to move, a second winding drum is arranged on one side of the first hoisting driving device on the first trolley frame 21, the first hoisting driving device is connected with a second speed reducing mechanism through a first transmission assembly, the second speed reducing mechanism drives the second winding drum to rotate, and a second fixed pulley block is arranged on the first trolley frame 21 in a matched manner, and the second fixed pulley block is connected with a second hoisting hook through a steel wire rope.

Second walking wheel is installed to the bottom of second trolley frame 31, second hoist and mount subassembly includes second operation drive arrangement and second lifting drive arrangement, second operation drive arrangement drive the second walking wheel removes, be equipped with the third reel in one side of second lifting drive arrangement on the second trolley frame 31, and second lifting drive arrangement passes through the second drive assembly and is connected with third reduction gears, third reduction gears drive third reel rotates, and cooperate the third reel in install the fixed assembly pulley of third on the second trolley frame 31, the fixed assembly pulley of third passes through wire rope and the lifting hook of third lifting is connected.

Further, please refer to fig. 3, as a specific embodiment of the bridge crane provided in the present invention, a first slide rail 13 is laid on the double-beam bridge 1, the first carriage frame 21 is slidably connected to the first slide rail 13 through a first traveling wheel, and the second carriage frame 31 is slidably connected to the first slide rail 13 through a second traveling wheel.

In order to enlarge the hoisting range of the bridge crane, please refer to fig. 2, as a specific embodiment of the bridge crane provided by the present invention, the suspension arm hoisting device 4 includes a base 41, a suspension arm 42 and a hoisting member 43, the base 41 is slidably disposed at the bottom of the double-beam bridge frame 1, one end of the suspension arm 42 is rotatably connected to the base 41 through a rotating shaft, and the other end of the suspension arm 42 is provided with the hoisting member 43. Therefore, the cantilever crane device 4 can be used for hoisting devices such as a bypass valve group, a deaerator recirculating pump and a deaerator top safety valve, so that the workload of the first hoisting component is reduced, and the service life of the first hoisting component is prolonged. And through distributing work load to second hoist and mount subassembly, cantilever hoist and mount are put 4, can corresponding reduce the structure beam column 6 of first hoist and mount subassembly to reduce the civil engineering cost.

Further, please refer to fig. 2, as a specific embodiment of the bridge crane provided in the present invention, a second slide rail 14 is disposed at the bottom of the double-beam bridge 1, and the base 41 is slidably connected to the second slide rail 14.

Further, please refer to fig. 2, as a specific embodiment of the bridge crane provided by the present invention, the hanging component 43 is a hoist.

Further, please refer to fig. 3, as a specific embodiment of the bridge crane provided by the present invention, the bridge crane further includes two end beams 5 arranged in parallel, the double-beam bridge 1 is horizontally installed between the two end beams 5, and two ends of the double-beam bridge 1 are fixedly connected to top ends of the end beams 5; the end beam 5 is mounted on a structural beam column 6 of the plant.

Further, please refer to fig. 3, as a specific embodiment of the bridge crane provided by the present invention, the dual-beam bridge 1 includes a first main beam 11 and a second main beam 12 arranged in parallel, and the first sliding rail 13 is disposed on both the first main beam 11 and the second main beam 12; the second slide rail 14 is disposed at the bottom of the first main beam 11 or the second main beam 12.

To sum up, the bridge crane of the present invention can control the second hoisting component 33 to hoist the special opposite-type MSR, and because the hoisting weight of the second hoisting component 33 is lower than that of the first hoisting component, the overall structure of the second hoisting component is lighter than that of the first hoisting component 22, so that the installation height of the first hoisting component can be reduced, the size of the cross section of the structural beam column 6 supporting the crane can be correspondingly reduced, and the construction cost is reduced; meanwhile, the second hoisting assembly is arranged on the supporting device 32, and the height of the second hoisting assembly 33 in the vertical direction is higher than that of the first hoisting assembly 22, so that the hoisting upper limit of the second hoisting assembly is improved, the roof does not need to be excessively raised while the mounting and overhauling requirements of the MSR are met, the roof elevation of the main plant is reduced, and the construction cost is saved. In addition, through the bottom of two roof beam crane span structures 1 is equipped with cantilever crane and puts 4 to can avoid the relatively poor maintenance single track of stability in use or temporary measure, save the cost, shorten the installation and the maintenance time of equipment, effectively reduce the maintenance cost, promote the operation security of whole crane unit simultaneously, further improve the economic nature in the power plant full life cycle and the holistic aesthetic property of factory building.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A bridge crane is characterized by comprising a double-beam bridge, a first trolley mechanism and a second trolley mechanism, wherein the first trolley mechanism and the second trolley mechanism are arranged on the double-beam bridge in a sliding manner, and a cantilever crane device is arranged at the bottom of the double-beam bridge;

2. The bridge crane according to claim 1, wherein a first slide rail is laid on the double-beam bridge, and the first carriage and the second carriage are both slidably connected to the first slide rail.

3. The bridge crane as claimed in claim 2, wherein the boom suspension device comprises a base, a boom and a suspension member, the base is slidably disposed at the bottom of the double-beam bridge, one end of the boom is rotatably connected to the base through a rotating shaft, and the other end of the boom is provided with the suspension member.

4. The bridge crane according to claim 3, wherein a second slide rail is provided on the bottom of the double-beam bridge, and the base is slidably connected to the second slide rail.

5. Bridge crane according to claim 3, wherein the hoisting member is a hoist.

6. The bridge crane of claim 1, further comprising two end beams disposed in parallel, wherein the double-beam bridge is horizontally mounted between the two end beams, and wherein the ends of the double-beam bridge are fixedly connected to the top ends of the end beams.

7. The bridge crane of claim 4, wherein the dual-beam bridge comprises a first main beam and a second main beam arranged in parallel, and the first sliding rail is arranged on each of the first main beam and the second main beam; the second slide rail is arranged at the bottom of the first main beam or the second main beam.