CN204434114U - The hanging beam of crane in bridge type - Google Patents

Abstract

The utility model provides a suspension beam of a bridge crane, which comprises: a main beam body, a plurality of lower lifting lugs and a plurality of upper lifting lugs. The main beam body is flat and long. A plurality of lower hanging lugs protrude downward from the bottom of the main girder body, and the plurality of lower hanging lugs are arranged from one end to the other end along the length direction of the main girder body. A plurality of upper lifting lugs protrude upward from the top of the main girder body, and the plurality of upper lifting lugs are arranged from one end to the other end along the length direction of the main girder body so as to be suitable for a bridge crane with multiple lifting points. The upper lug of the suspension beam of the utility model can be connected with the bridge crane by a pin shaft, and the lower lug can be connected with the suspended object by using a shackle and a wire rope, so that the large equipment can be hoisted at one time, and the equipment can be removed. The process of assembly after disassembly and hoisting avoids secondary damage to the equipment, saves the installation cycle of the equipment, saves the high cost of renting a floating crane, and meets the hoisting requirements of large tonnage.

Description

Suspension girder of bridge crane

technical field

The utility model relates to a large-scale equipment hoisting device, in particular to a suspension beam of a bridge crane.

Background technique

The overall structure of large-scale equipment on ships and offshore platforms is complex and heavy. After being disassembled and separated, it needs to be hoisted several times. Each hoisting needs to be replaced according to the specific situation. After hoisting in place, it needs to be reassembled and installed, prolonging the construction period and time-consuming It is laborious and easy to cause secondary damage to the equipment.

In marine engineering, when large-scale equipment is hoisted for general ships or offshore platforms, floating cranes are usually used to hoist them as a whole. The hoisting scheme needs to be designed according to the structure of the floating crane. When the ship or offshore platform is too large and the weight of large equipment to be installed exceeds 2,500 tons, the floating crane cannot meet the requirements.

In the prior art, ZL 201210155687.7 discloses a heavy lifting beam. First, its bearing capacity is only 900 tons, which is far from being able to bear the lifting weight of large-scale equipment in the shipbuilding industry. Secondly, its upper lifting lug structures are concentrated on both sides of the lifting beam. The lower hanging lug structure is concentrated in the middle of the hanging beam, which is not conducive to the stress of the beam body of the hanging beam itself.

Utility model content

The purpose of the utility model is to solve the problem that the floating crane cannot be used for hoisting large-scale equipment of ships or ocean platforms, and to provide a suspension beam suitable for hoisting large-tonnage heavy equipment and matching with large-scale bridge cranes.

In order to solve the above technical problems, the utility model adopts the following technical solution: a suspension beam of a bridge crane, comprising: a main beam body, a lower lifting lug and an upper lifting lug. The main beam body is prolate and long. The plurality of lower hanging lugs protrude downward from the bottom of the main girder body, and the plurality of lower lifting lugs are arranged from one end to the other end along the length direction of the main girder body. The plurality of upper lifting lugs protrude upward from the top of the main girder body, and the plurality of upper lifting lugs are arranged from one end to the other end along the length direction of the main girder body so as to be suitable for bridge cranes with multiple lifting points .

In a preferred solution, the main girder body includes: an upper cover plate, a lower cover plate and a main suspension plate. The upper cover plate is arranged horizontally, and a through groove of the upper cover plate penetrating up and down is arranged along the length direction. The lower cover plate row is arranged on the below of the upper cover plate, and the lower cover plate is provided with a lower cover plate through groove extending up and down along the length direction. The main hanging plate is vertically arranged, and its length direction is consistent with the upper cover plate and the lower cover plate and is connected with the upper cover plate and the lower cover plate. slot, and the lower lifting lug passes through the slot of the lower cover plate downwards.

In a preferred solution, grooves are formed on the side of the main hanging plate, and sealing plates are laid on the openings of part or all of the grooves so that the main hanging plate is box-shaped.

In a preferred solution, the main girder body is provided with a plurality of transverse ribs and longitudinal ribs criss-crossing on the side, the transverse ribs, the longitudinal ribs, the upper cover, the lower cover 1. Multiple grooves are formed between the main hanging plates.

In a preferred solution, the transverse ribs extend along the length direction and are perpendicular to the main hanging plate, a plurality of transverse ribs are arranged at intervals along the height direction, the longitudinal ribs extend along the height direction and are perpendicular to the main hanging plate, Ribs are arranged at intervals along the length direction.

In a preferred solution, the material of the main hanging plate, the upper hanging lug, and the lower hanging lug is steel with a yield strength value above 690.

In a preferred solution, the plurality of upper lifting lugs are evenly arranged and every two adjacent upper lifting lugs are connected to the same hook of the bridge crane.

In a preferred solution, the number of the lower lifting lugs is an odd number and not less than three, one of the lifting lugs is located at the lengthwise center of the main hanging plate to form a single lifting point, and the rest of the lifting lugs are placed symmetrically The two sides of the single lifting point mentioned above, and two symmetrical lifting lugs form a set of lifting points.

In a preferred solution, the lower hanging lug includes an ear plate integrally formed with the main hanging plate, and a hanging hole is opened on the ear plate, and a first reinforcing plate is respectively arranged on both sides of the ear plate of the lower hanging ear, The upper part of the first reinforcing plate passes upwards through the slot of the upper cover plate and is connected with the main hanging plate, and the lower part of the first reinforcing plate is attached to both sides of the lug plate to sandwich the lug plate Wherein, the first reinforcing plate is also provided with hanging holes corresponding to the hanging holes of the lower hanging lugs.

In a preferred solution, the two first reinforcement plates are respectively provided with at least one reinforcement ring around the lifting hole; the main beam body also includes a plurality of second reinforcement plates, which are arranged outside the ear plates At the outline position, the end of the second reinforcing plate is connected to the lower cover plate, and the surface of the second reinforcing plate is vertically connected to the side of the ear plate.

As can be seen from the above-mentioned technical scheme, the advantages and positive effects of the present utility model are:

1. All parts of the hanging beam of the utility model are welded. The upper lifting lug can be connected with a 20,000-ton bridge crane by a pin shaft, and the lower lifting lug can be connected to the suspended object by using a 1,500-ton shackle and a wire rope. , so as to hoist large equipment at one time, remove the process of disassembling and hoisting the equipment and then reassemble it, avoid secondary damage to the equipment, save the installation cycle of the equipment, save the high cost of renting floating cranes, and meet the needs of large Tonnage hoisting requirements;

2. The material of the main hanging plate, the upper hanging lug and the lower hanging lug is steel with a yield strength value of 690, which reduces the weight of the hanging beam itself. The weight of the hanging beam in this embodiment does not exceed 3,000 tons;

3. There are multiple sets of lifting points formed under the hanging beam of the utility model, which can be suitable for lifting large-scale equipment of different structures;

4. The main hanging plate, the upper cover plate and the lower cover plate of the main girder body of the utility model are connected into a structure with an "I" shape in cross section, so that the main girder body can be greatly expanded under the condition of a basic stress. The weight of the beam body is reduced, and the welding process is greatly simplified. In addition, the transverse ribs and longitudinal ribs are distributed inside the main girder to ensure the overall strength and no deformation of the main girder.

Description of drawings

Fig. 1 is a structural schematic diagram of a suspension beam in a preferred embodiment of the present invention.

Fig. 2 is another structural schematic diagram of the suspension beam shown in Fig. 1 .

FIG. 3 is a side view of the suspension beam shown in FIG. 2 .

Fig. 4 is another structural schematic diagram of the hanging beam shown in Fig. 2 .

FIG. 5 is a cross-sectional view along the direction A of FIG. 2 .

FIG. 6 is a sectional view taken along the direction B of FIG. 2 .

Fig. 7 is a cross-sectional view taken along line C in Fig. 2 .

Fig. 8 is a schematic structural view of the upper cover plate of the suspension beam shown in Fig. 1 .

Fig. 9 is a schematic structural view of the lower cover plate of the hanging beam shown in Fig. 1 .

Fig. 10 is a structural schematic diagram of the main hanging plate, the upper hanging lug and the lower hanging lug of the hanging beam shown in Fig. 1 .

Reference signs are explained as follows: 1, main beam body; 11, upper cover plate; 111, upper cover plate through groove; 12, lower cover plate; 121, lower cover plate through groove; 13, main hanging plate; 14, groove 15, sealing plate; 16, transverse rib plate; 17, longitudinal rib plate; 2, lower lug; 23, the second reinforcement plate; 3, the upper hanging lug; 31, the lug plate; 311, the hanging hole.

Detailed ways

A typical implementation that embodies the features and advantages of the present utility model will be described in detail in the following description. It should be understood that the utility model can have various changes in different embodiments, all of which do not depart from the scope of the utility model, and the description and illustrations therein are used as illustrations in nature, not for To limit the utility model.

Referring to Fig. 1-10, a suspension girder of a bridge crane includes: a main girder body 1, a lower lifting lug 2 and an upper lifting lug 3.

Referring to Fig. 2, Fig. 8 and Fig. 9, the main girder body 1 is prolate, the length of the main girder body 1 is 26190-26200 mm, and the height of the main girder body 1 is 2340-2350 mm. The main beam body 1 includes: an upper cover plate 11 , a lower cover plate 12 and a main suspension plate 13 . The upper cover plate 11 is arranged horizontally, and an upper cover plate through groove 111 penetrating up and down is arranged along the length direction. The lower cover plates 12 are arranged in rows below the upper cover plate 11 , and the lower cover plate 12 is provided with a lower cover plate through slot 121 extending up and down along the length direction. The main hanging plate 13 is vertically arranged, and its length direction is consistent with the upper cover plate 11 and the lower cover plate 12 and is connected together with the upper cover plate 11 and the lower cover plate 12 . Referring to Fig. 10, the bottom of the main hanging plate 13 narrows from top to bottom. Referring to Figure 4-7, the main hanging plate 13, the upper cover plate 11, and the lower cover plate 12 are connected to form a cross-section of "I"-shaped structure, which can make the main beam body 1 achieve a basic Under stress conditions, the weight of the beam body is greatly reduced, and the welding process is also greatly simplified. In other embodiments, according to actual needs, the main hanging plate 13, the upper cover plate 11, and the lower cover plate 12 are connected The cross-section can also be other structures, such as a II-shaped structure.

Continuing to refer to Fig. 1 and Fig. 2, the main hanging plate 13 is formed with a groove 14 on the side, and part or all of the notches of the groove 14 are covered with a sealing plate 15 so that the main hanging plate 13 is box-shaped to increase the main girder body. 1 strength. The main girder body 1 is provided with a plurality of transverse ribs 16 and longitudinal ribs 17 criss-crossing on the side. A plurality of grooves 14. A sealing plate 15 is laid on the notches of one or more adjacent grooves 14 to reduce weight.

Continuing to refer to Fig. 1 and Fig. 2, the transverse ribs 16 extend along the length direction and are perpendicular to the main hanging plate 13, a plurality of transverse ribs 16 are arranged at intervals along the height direction, and the longitudinal ribs 17 extend along the height direction and are perpendicular to the main hanging plate 13, A plurality of longitudinal ribs 17 are arranged at intervals along the length direction. The above-mentioned transverse ribs 16 and longitudinal ribs 17 are distributed inside the main beam body 1 to ensure the overall strength and non-deformation of the main beam body 1 .

The material of the main hanging plate 13, the upper hanging lug 3, and the lower hanging lug 2 is steel with a yield strength value of 690. This steel has high strength, which can reduce the blanking of steel, thereby reducing the weight of the hanging beam itself.

Referring to FIG. 10 , a plurality of lower lifting lugs 2 protrude downward from the bottom of the main beam body 1 , and the plurality of lower lifting lugs 2 are arranged along the length direction of the main beam body 1 from one end to the other end. The lower lug 2 passes through the lower cover plate through groove 121 downwards. The lower lug 2 includes an ear plate 21 integrally formed with the main hanging plate 13, and the ear plate 21 is provided with a hanging hole 211.

Referring to Fig. 4-7, a first reinforcing plate 22 is provided on both sides of the lug plate 21 of the lower lifting lug 2, and the upper part of the first reinforcing plate 22 passes upward through the upper cover plate through groove 111 and is connected with the main hanging plate 13. The lower part of a reinforcing plate 22 fits on both sides of the lug plate 21 to sandwich the lug plate 21 therein; The two first reinforcing plates 22 are respectively provided with at least one reinforcing ring 222 surrounding the lifting hole 221 . The above-mentioned reinforcing plate is located at the lifting lug hole, and its purpose is to enhance the local stress in the lifting lug hole.

Referring to Fig. 2, the outer contour of the ear plate 21 is arc-shaped, and the outer contour position of the ear plate 22 is provided with a plurality of second reinforcing plates 23, the ends of the second reinforcing plates 23 are connected with the lower cover plate 12, and the second reinforcing plates 23 The board surface is vertically connected with the arc side of the ear plate 21 .

The number of lower lifting lugs 2 is an odd number and not less than three, one of which is located at the center of the length direction of the main hanging plate 13 to form a single lifting point, and the rest of the lifting lugs are symmetrically placed on both sides of the single lifting point. And two symmetrical lifting lugs form a set of lifting points. The number of the lower hanging lugs 2 is eleven, forming six groups of hanging points. These six groups of lifting points can meet the needs of different lifting structures.

Referring to Fig. 2 and Fig. 10, a plurality of upper lifting lugs 3 protrude upward from the top of the main girder body 1, and a plurality of upper lifting lugs 3 are arranged from one end to the other end along the length direction of the main girder body 1 to be suitable for multi-hanging point Bridge cranes are especially suitable for 20,000-ton bridge cranes. The hanging beam of the utility model eliminates the process of disassembling and hoisting the equipment and then assembling and assembling, so as to avoid secondary damage to the equipment.

The upper hanging lug 3 passes upward through the upper cover plate through groove 111 , and the upper hanging lug 3 includes an ear plate 31 integrally formed with the main hanging plate 13 , and a hanging hole 311 is opened on the ear plate 31 . The plurality of upper lifting lugs 3 are evenly arranged and every two adjacent upper lifting lugs 3 are connected to the same hook of the bridge crane.

As can be seen from the above-mentioned technical scheme, the advantages and positive effects of the present utility model are:

1. All parts of the hanging beam of the utility model are welded. The upper lifting lug can be connected with a 20,000-ton bridge crane by a pin shaft, and the lower lifting lug can be connected with the suspended object by using a 1,500-ton shackle and a wire rope. . One-time hoisting of large-scale equipment eliminates the process of disassembling and hoisting the equipment and then assembling it, which avoids secondary damage to the equipment, saves the installation period of the equipment, and saves the high cost of renting floating cranes to meet the requirements of large-tonnage hoisting requirements;

2. The material of the main hanging plate, the upper hanging lug and the lower hanging lug is steel with a yield strength value of 690, which reduces the weight of the hanging beam itself. The weight of the hanging beam in this embodiment does not exceed 3,000 tons;

3. There are multiple sets of lifting points formed under the hanging beam of the utility model, which can be suitable for lifting large-scale equipment of different structures;

4. The main hanging plate, the upper cover plate and the lower cover plate of the main girder body of the utility model are connected into a structure with an "I" shape in cross section, so that the main girder body can be greatly expanded under the condition of a basic stress. The weight of the beam body is reduced, and the welding process is greatly simplified. In addition, the transverse ribs and longitudinal ribs are distributed inside the main girder to ensure the overall strength and no deformation of the main girder.

While the present invention has been described with reference to exemplary embodiments, it is understood that the words which have been used are words of description and illustration, rather than limitation. Since the invention can be embodied in various forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly defined within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (10)

1. A suspension beam of an overhead crane, characterized in that it comprises: The main beam body is flat and long; a plurality of lower lugs protruding downward from the bottom of the main girder body, the plurality of lower lugs being arranged from one end to the other end along the length direction of the main girder body; and, A plurality of upper lifting lugs, which protrude upward from the top of the main girder body, and the plurality of upper lifting lugs are arranged from one end to the other end along the length direction of the main girder body to be suitable for bridge cranes with multiple lifting points . 2. The suspension beam of the bridge crane according to claim 1, wherein the main girder body comprises: The upper cover is set horizontally, and there is a through slot for the upper cover that penetrates up and down along the length direction; The lower cover plate is arranged in parallel below the upper cover plate, and the lower cover plate is provided with a lower cover plate through groove extending up and down along the length direction; and, The main hanging plate is vertically arranged, and its length direction is consistent with the upper cover plate and the lower cover plate, and is connected with the upper cover plate and the lower cover plate, and the upper lifting lugs pass through the upper cover plate upwards Through slots, the lower lifting lugs pass through the lower cover plate through slots downwards. 3. The suspension beam of bridge crane according to claim 2, characterized in that, the main hanging plate is formed with a groove on the side, and a sealing plate is laid on the notches of part or all of the grooves so that the main hanging plate The hanging board is box-shaped. 4. The suspension beam of the bridge crane according to claim 3, characterized in that, the main girder body is provided with a plurality of transverse ribs and longitudinal ribs criss-crossing on the side, and the transverse ribs, the longitudinal ribs A plurality of grooves are formed among the ribs, the upper cover plate, the lower cover plate and the main suspension plate. 5. The suspension beam of a bridge crane according to claim 4, wherein the transverse ribs extend along the length direction and are perpendicular to the main suspension plate, a plurality of transverse ribs are arranged at intervals along the height direction, and the longitudinal ribs Extending along the height direction and perpendicular to the main hanging plate, multiple longitudinal ribs are arranged at intervals along the length direction. 6 . The suspension beam of the bridge crane according to claim 2 , wherein the material of the main hanging plate, the upper hanging lug and the lower hanging lug is steel with a yield strength value of 690 or more. 7 . 7. The suspension beam of an overhead crane according to claim 1, wherein the plurality of upper lifting lugs are evenly arranged and every two adjacent upper lifting lugs are connected to the same hook of the overhead crane. 8. The suspension beam of a bridge crane according to claim 2, wherein the number of the lower lifting lugs is an odd number and not less than three, and one of the lifting lugs is located at the center structure in the length direction of the main suspension plate. form a single hanging point, and the rest of the lifting lugs are symmetrically placed on both sides of the single hanging point, and two symmetrical lifting lugs form a set of hanging points. 9. The suspension beam of an overhead crane according to claim 2, wherein the lower lifting lug includes an ear plate integrally formed with the main suspension plate, and a hanging hole is opened on the ear plate, and the lower hanging lug A first reinforcing plate is arranged on both sides of the lug plate of the ear, and the upper part of the first reinforcing plate passes upward through the through groove of the upper cover plate to be connected with the main hanging plate, and the lower part of the first reinforcing plate is attached to the Closed on both sides of the ear plate to clamp the ear plate therein, the first reinforcement plate is also provided with a hanging hole corresponding to the hanging hole position of the lower hanging ear. 10. The suspension beam of a bridge crane according to claim 9, wherein at least one reinforcement ring around the lifting hole is respectively provided on the two first reinforcement plates; the main girder body also includes multiple a second reinforcement plate, which is arranged at the position of the outer contour of the ear plate, the end of the second reinforcement plate is connected with the lower cover plate, and the plate surface of the second reinforcement plate is connected to the side surface of the ear plate connected vertically.