CN211769751U

CN211769751U - Hanging beam device for lifting double overhead travelling cranes

Info

Publication number: CN211769751U
Application number: CN201921846443.7U
Authority: CN
Inventors: 徐卫红; 吴艳
Original assignee: MCC SFRE Heavy Industry Equipment Co Ltd
Current assignee: MCC SFRE Heavy Industry Equipment Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-10-27
Anticipated expiration: 2029-10-30

Abstract

The invention discloses a hanging beam device for lifting a double crown block, which comprises a beam body, wherein hanging structures are respectively arranged at two ends of the beam body, and a hooking device is arranged below the middle part of the beam body; the beam body comprises two vertical plates which are vertically arranged side by side, the upper parts of the two vertical plates are connected through an upper panel, the lower parts of the two vertical plates are connected through a lower panel, a plurality of rib plates are arranged between the two vertical plates, and the hanging structure is arranged between the two vertical plates and arranged at the two ends of the two vertical plates; the hanging structure comprises a pin shaft, the pin shaft is vertically arranged between two vertical plates, supporting blocks are sleeved at two ends of the pin shaft respectively, each supporting block is fixedly connected with the corresponding vertical plate, the upper panel is provided with a notch right above the pin shaft, the pin shaft of the device is arranged in the beam body, so that a crown block hook enters the beam body when being hung, the moving height range of a heavy object is enlarged, and the problems that the existing hanging device of the hanging beam device is installed outside the hanging beam device and the lifting height range is small are solved.

Description

Hanging beam device for lifting double overhead travelling cranes

Technical Field

The utility model belongs to the technical field of mechanical equipment hoist and mount, a hanging beam device that two overhead traveling cranes lifted is related to.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes. The bridge of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity. A shop usually has a crown block installed to move large heavy objects, such as upper and lower beams of a large press, and the installation height of these components is relatively high. The weight of parts such as upper and lower beams of the large-scale press can exceed the lifting capacity of a single overhead crane equipped in a factory building, two overhead cranes are used for a common lifting method, and because the elevation of the track of the overhead crane in the factory building is not enough, the common lifting beam device loses some lifting height because the lifting hook of the overhead crane is connected with the lifting beam through a steel wire rope or a hanging strip on the upper part of the lifting beam, and the movable height range of the parts such as the upper and lower beams of the large-scale press is small and can not be moved to a target position; the hoisting cost of the large-tonnage crawler crane or truck crane is high, the large-tonnage crawler crane or truck crane is greatly influenced by the operating environment, particularly the elevation in a factory building is insufficient, and the space is narrow, so that the large-tonnage crawler crane or truck crane is very difficult to enter a construction site. Therefore, the problem that the heavier components such as the upper and lower beams of the large-scale press are hoisted to the required height position by utilizing the limited overhead crane track elevation in the factory building needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hanging beam device that two overhead traveling cranes lift and hang, the hooking device who solves current hanging beam device installs in hanging beam device outside, lifts by crane the problem that the height range is little.

The technical scheme adopted by the utility model is that the hanging beam device for lifting the double crown blocks comprises a beam body, hanging structures are respectively arranged at two ends of the beam body, and a hanging device is arranged below the middle part of the beam body; the beam body comprises two vertical plates which are vertically arranged side by side, the upper parts of the two vertical plates are connected through an upper panel, the lower parts of the two vertical plates are connected through a lower panel, a plurality of rib plates are arranged between the two vertical plates, and the hanging structure is arranged between the two vertical plates and arranged at the two ends of the two vertical plates; the hanging structure comprises a pin shaft, the pin shaft is vertically arranged between two vertical plates, supporting blocks are respectively sleeved at two ends of the pin shaft, each supporting block is fixedly connected with the corresponding vertical plate, and a notch is formed in the upper panel which is positioned right above the pin shaft; the hooking device comprises a lifting hook, the lifting hook is sleeved with an trunnion seat, a thrust self-aligning roller bearing, a bearing cover and a nut which are sequentially arranged from bottom to top, the trunnion seat is vertically arranged between two vertical plates, two ends of the trunnion seat are respectively sleeved with a side plate, the outer side of each side plate is provided with a step plate, and each step plate is fixedly connected with the corresponding vertical plate.

The number of the pin shafts in each set of hanging structure is two, the two pin shafts are arranged in parallel, one ends of the two pin shafts are connected through the supporting block, and the other ends of the two pin shafts are connected through the supporting block.

Each step plate is provided with a through hole a, the two through holes a are coaxially arranged, one side of each step plate is fixedly connected with a flange, each flange is positioned below the corresponding through hole a, the two flanges are oppositely arranged, each flange is contacted with the corresponding side plate, and the side plates are fixedly connected with the corresponding step plates through bolts.

The lifting hook is a double-hook lifting hook.

Lightening holes a are formed in the upper panel and the lower panel, and the lightening holes a are located between the rib plates.

Each vertical plate is provided with lightening holes b, and the lightening holes b are positioned between the rib plates.

The upper panel is arched.

The trunnion seat is shaft-shaped, the lifting hook is radially inserted into the trunnion seat along the trunnion seat, the trunnion seat comprises trunnion blocks fixedly connected at two ends of the trunnion seat, and each trunnion block is respectively inserted into the corresponding side plate.

Each side plate 8 is provided with a through hole b, the two through holes b are coaxially arranged, and the two ends of the trunnion seat 6 are inserted into the through holes b of the corresponding side plates 8.

The utility model relates to a hanging beam device that two overhead traveling cranes lift and hang has following beneficial effect at least:

firstly, the adopted beam body is formed by welding the vertical plate, the upper panel and the lower panel, the comprehensive mechanical property is strong, lightening holes are formed in the whole beam body to lighten the dead weight of the beam body, heavier weights can be hoisted in the bearing range of the overhead travelling crane, and the scraped materials can be used for other purposes, so that the cost is saved; rib plates are arranged between the vertical plates for increasing the strength, so that the beam body is more stable; the upper panel is arched, so that the cross section of the middle part of the beam is the largest, and the middle part of the hanging beam device is reinforced to prevent the hanging beam device from deforming;

secondly, the adopted hanging structure is provided with oppositely arranged supporting blocks fixedly connected on the vertical plate, and the thickness of each supporting block is larger than that of the vertical plate so as to disperse the stress of the pin shaft; meanwhile, each hanging structure is provided with two pin shafts which can restrict the circumferential motion of the hook of the crown block, so that the crown block hook can be stably and safely unhooked in the moving process of the hanging beam device; the shaft end baffle is convenient to mount and dismount the pin shaft, and is convenient to mount and easy to maintain; the hook head of the crown block is hooked on the pin shaft and enters the inside of the beam body, so that the moving space of the heavy object can be enlarged as much as possible, and the heavy object can be moved conveniently;

thirdly, the adopted hooking device is provided with an trunnion seat, a side plate and a step plate, an installation position is provided for the lifting hook, the installation position is convenient to disassemble, the step plate and the side plate can be used for bearing the force during lifting, the strength of the vertical plate is enhanced, the lifting hook can enter from the lower part of the trunnion seat when being installed, a bearing cover and a nut are used for fixing the hook, and the nut is easy to disassemble; the lifting hook can be selected from a single hook and a double hook to be suitable for heavy objects with different tonnages; the device is simple and easy to operate, convenient to operate, high in lifting height and good in safety, and can lift heavy parts such as upper and lower beams of a large-scale press to a required height position.

Drawings

FIG. 1 is a schematic diagram of the general structure of a beam device for lifting a double crown block;

FIG. 2 is a top view of the beam assembly of the dual overhead crane of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of the beam assembly of the dual crown block lifting crane of FIG. 1;

FIG. 4 is a sectional view taken along line A-A of the beam assembly of the dual crown block lifting crane of FIG. 1;

fig. 5 is a schematic diagram of a beam device for lifting and hanging two crown blocks of the invention when the beam device is connected with the two crown blocks.

In the figure, 1, a beam body, 2, an upper panel, 3, a lower panel, 4, a vertical plate, 5, a step plate, 6, a trunnion seat, 7, a trunnion block, 8, a side plate, 9, a self-aligning thrust roller bearing, 10, a lifting hook, 11, a bearing cover, 12, a nut, 13, a supporting block, 14, a pin shaft, 15, a shaft end baffle, 16, a workpiece, 17, a sling, 18 and a crown block are arranged.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The technical scheme of the utility model is that a beam hanging device for lifting a double crown block, as shown in figures 1-4, comprises a beam body 1, hanging structures are respectively arranged at two ends of the beam body 1, and a hooking device is arranged below the middle part of the beam body 1; the beam body 1 comprises two vertical plates 4 which are vertically arranged side by side, the upper parts of the two vertical plates 4 are connected through an upper panel 2, the lower parts of the two vertical plates 4 are connected through a lower panel 3, a plurality of rib plates are arranged between the two vertical plates 4, and the hanging structure is arranged between the two vertical plates 4 and arranged at the two ends of the two vertical plates 4; the hanging structure comprises a pin shaft 14, the pin shaft 14 is vertically arranged between the two vertical plates 4, two ends of the pin shaft 14 are respectively sleeved with a supporting block 13, each supporting block 13 is fixedly connected with the corresponding vertical plate 4, and a gap is arranged at the position of the upper panel 2, which is positioned right above the pin shaft 14; the hooking device comprises a lifting hook 10, the lifting hook 10 is sleeved with an trunnion seat 6, a thrust self-aligning roller bearing 9, a bearing cover 11 and a nut 12 which are sequentially arranged from bottom to top, the trunnion seat 6 is vertically arranged between two vertical plates 4, two ends of the trunnion seat 6 are respectively sleeved with a side plate 8, the outer side of each side plate 8 is provided with a step plate 5, and each step plate 5 is fixedly connected with the corresponding vertical plate 4.

As shown in fig. 1, 2 and 3, the number of the pin shafts 14 in each set of hanging structure is two, the two pin shafts 14 are arranged in parallel, one ends of the two pin shafts 14 are connected through the supporting block 13, the other ends of the two pin shafts 14 are connected through the supporting block 13, and the two pin shafts can restrict the circumferential motion of the hook of the overhead crane, so that the overhead crane can be stably and safely moved without unhooking the hook of the overhead crane; lightening holes a are formed in the upper panel 2 and the lower panel 3 respectively, the lightening holes a are located between the rib plates, the lightening holes a are square, each vertical plate 4 is provided with lightening holes b, the lightening holes b are located between the rib plates, and the lightening holes b are circular; the upper panel 2 is arched to maximize the cross-section of the middle of the beam to strengthen the middle of the beam assembly to prevent deformation.

As shown in fig. 4, a step plate 5 is respectively welded in the middle of two vertical plates 4, a pair of step plates 5 are arranged oppositely, the step plates 5 are used for enhancing the strength of the vertical plates 4 and bearing the force of the trunnion base 6 in a dispersing way, each step plate 5 is provided with a through hole a, the two through holes a are coaxially arranged, one side of each step plate 5 is fixedly connected with a flange, each flange is positioned below the corresponding through hole a, the two flanges are oppositely arranged, each flange is contacted with the corresponding side plate 8, and the side plate 8 is fixedly connected with the corresponding step plate 5 through bolts. The trunnion seat 6 is in a shaft shape, the lifting hook 10 is radially inserted into the trunnion seat 6 along the trunnion seat 6, the trunnion seat 6 comprises trunnion blocks 7 fixedly connected with two ends of the trunnion seat 6, each trunnion block 7 is respectively inserted into a corresponding side plate 8, each side plate 8 is provided with a through hole b, the two through holes b are coaxially arranged, and two ends of the trunnion seat 6 are inserted into the through holes b of the corresponding side plates 8; the thrust self-aligning roller bearing 9 is arranged in a bearing hole in the upper end of the trunnion base 6, the lifting hook 10 penetrates through the trunnion base 6, the thrust self-aligning roller bearing 9 and the bearing cover 11, the nut 12 is screwed up to be blocked, the lifting hook 10 and the trunnion base 6 are matched in a large clearance fit, and the lifting hook 10 and the trunnion base 6 can rotate flexibly relatively.

As shown in fig. 1 and 5, distances between the hook 10 of the hanging beam device and the centers of the left and right ends of the beam body 1 are L1 and L2, respectively, forces applied to the left and right ends of the beam body 1 are F1 and F2, respectively, and L1: l2 ═ F2: f1, i.e. using the principle of lever; in order to increase the lifting height of the lifting beam device as much as possible, the distance H between the hook tip of the lifting hook 10 and the lower surface of the lower panel 3 is as small as possible on the premise that a sling can be hung, and the length of the sling 17 is adjusted to just enable a heavy object to be hung; the lifting hook 10 is a double-hook lifting hook, two ends of the beam body 1 are respectively and correspondingly connected with two overhead cranes through hanging structures, and when the lifting beam device is designed, the lifting capacity of the two overhead cranes connected with the lifting beam device is considered, so that the bearing capacity of the lifting beam device is exerted to the maximum extent.

The invention relates to a beam device for lifting a double crown block, which is specifically operated as follows when in use:

step 1, hanging two ends of a beam body 1 on a hook head of a crown block respectively: firstly, removing a shaft end baffle 15 of one end hanging structure, then removing a pin shaft 14 corresponding to the removed shaft end baffle 15, then moving a hook head of a crown block 18 between two oppositely arranged supporting blocks 13 and hooking another pin shaft 14, finally installing the removed pin shaft 14 and installing the shaft end baffle 15 on the pin shaft 14; installing the other end of the beam body 1 on another crown block according to the operation steps;

step 2, hanging a heavy object on the hooking device: hanging a workpiece 16 to be lifted on a hooking device by using a sling 17, and adjusting the length of the sling 17 until the sling 17 can be just taken out of the hooking device so as to meet the requirement that the movable height range of the lifted workpiece is as large as possible;

step 3, moving the two crown blocks 18, driving the lifting and hoisting by the two crown blocks 18 to integrally move, and hoisting the workpiece 16 to a target position; a self-aligning thrust roller bearing 9 is arranged in the hanging beam device, and a hung workpiece 16 can fall to a target position along with the hanging hook 10 after the required direction is manually adjusted.

Claims

1. A beam hanging device for lifting a double crown block is characterized by comprising a beam body (1), hanging structures are respectively arranged at two ends of the beam body (1), and a hanging device is arranged below the middle part of the beam body (1);

the beam body (1) comprises two vertical plates (4) which are vertically arranged side by side, the upper parts of the two vertical plates (4) are connected through an upper panel (2), the lower parts of the two vertical plates (4) are connected through a lower panel (3), a plurality of rib plates are arranged between the two vertical plates (4), and the hanging structure is installed between the two vertical plates (4) and is arranged at the two ends of the two vertical plates (4);

the hanging structure comprises pin shafts (14), the pin shafts (14) are vertically arranged between the two vertical plates (4), supporting blocks (13) are respectively sleeved at two ends of each pin shaft (14), each supporting block (13) is fixedly connected with the corresponding vertical plate (4), and a gap is formed in the position, right above the pin shaft (14), of the upper panel (2);

the hooking device comprises a lifting hook (10), wherein the lifting hook (10) is sleeved with trunnion seats (6), a thrust self-aligning roller bearing (9), a bearing cover (11) and nuts (12) which are sequentially arranged from bottom to top, the trunnion seats (6) are vertically arranged in two between the vertical plates (4), two ends of the trunnion seats (6) are respectively sleeved with side plates (8), the outer side of each side plate (8) is provided with a step plate (5), and each step plate (5) corresponds to the vertical plates (4) in a fixedly connected mode.

2. The hanging beam device of a double crown block lifting crane according to claim 1, characterized in that the number of the pin shafts (14) in each set of hanging structure is two, two pin shafts (14) are arranged in parallel, one end of the two pin shafts (14) is connected through a supporting block (13), and the other end of the two pin shafts (14) is connected through the supporting block (13).

3. The hanging beam device for lifting and hanging a double crown block as claimed in claim 1, wherein each step plate (5) is provided with a through hole a, two through holes a are coaxially formed, one side of each step plate (5) is fixedly connected with a flange, each flange is positioned below the corresponding through hole a, the two flanges are oppositely arranged, each flange is in contact with the corresponding side plate (8), and the side plates (8) are fixedly connected with the corresponding step plates (5) through bolts.

4. The beam assembly of a twin overhead crane lifting crane according to claim 1, wherein the hook (10) is a twin hook.

5. The hanging beam device of a double crown block lifting crane according to claim 1, characterized in that the upper panel (2) and the lower panel (3) are both provided with lightening holes a, and the lightening holes a are positioned between the rib plates.

6. The hanging beam device of a double crown block lifting crane according to claim 1, characterized in that each vertical plate (4) is provided with lightening holes b, and the lightening holes b are positioned between the rib plates.

7. The device of claim 1, characterized in that the upper panel (2) is arched.

8. The hanging beam device of a double crown block lifting crane according to claim 1, characterized in that the trunnion seat (6) is shaft-shaped, the hook (10) is inserted into the trunnion seat (6) along the radial direction of the trunnion seat (6), the trunnion seat (6) comprises trunnion blocks (7) fixedly connected to both ends of the trunnion seat (6), and each trunnion block (7) is inserted into the corresponding side plate (8).

9. The hanging beam device of a double crown block lifting crane according to claim 1, characterized in that each side plate (8) is provided with a through hole b, two through holes b are coaxially arranged, and two ends of the trunnion seat (6) are inserted into the through holes of the corresponding side plates (8).