CN215249128U - High-strength main beam of portal crane - Google Patents

Abstract

The invention relates to the technical field of cranes and discloses a high-strength gantry crane girder which comprises two groups of main beams which are symmetrically arranged, wherein an auxiliary beam is arranged at the bottom of each main beam, a first connecting block and a second connecting block which are fully paved in the auxiliary beam are movably arranged in the auxiliary beam at equal intervals, the first connecting block and the second connecting block are both in a diamond shape, the first connecting block and the second connecting block are movably arranged in a crossed manner through connecting rods, and the first connecting block and the second connecting block are both movably arranged at the bottom of the main beam. According to the invention, through the auxiliary cross beam arranged below the main cross beam, the first connecting block and the second connecting block which are movably arranged on the auxiliary cross beam provide supporting force for the main cross beam together, and when the first connecting block and the second connecting block are pressed downwards, the first connecting block and the second connecting block can be opened towards two sides, so that the downward pressure of the main cross beam is reduced, the situation that goods are too heavy after the main cross beam is lifted and the structure of the main cross beam is damaged is prevented, and the effects of dispersing pressure and buffering gravity are achieved.

Description

High-strength main beam of portal crane

Technical Field

The invention relates to the technical field of cranes, in particular to a high-strength portal crane girder.

Background

A gantry crane (also called a gantry crane) is a bridge crane in which a bridge is supported on a ground rail by legs at both sides. Structurally, the crane consists of a portal frame, a cart running mechanism, a hoisting trolley, an electric part and the like. Some gantry cranes have legs on one side only, and the other side is supported on a factory or a trestle to run, and are called semi-gantry cranes. The gantry crane comprises a gantry upper bridge (comprising a main beam and an end beam), supporting legs, a lower cross beam and the like. In order to enlarge the operation range of the crane, the main beam can extend out of the supporting legs to one side or two sides to form a cantilever.

When loading large-scale goods, need use the portal crane of high strength, hoist large-scale goods through the loop wheel machine, transport and load, need the hoist enough stable during loading, the loop wheel machine is when hoisting goods, and the weight of goods can exert pressure to the girder, and the long-time work of hoist makes the girder of hoist receive the damage easily. To this end, we propose high strength gantry crane girders.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides a high-strength gantry crane main beam.

In order to achieve the purpose, the high-strength gantry crane main beam comprises two groups of main beams which are symmetrically arranged, a track is arranged at the top of each main beam, a crane is slidably connected inside the track, an auxiliary beam is arranged at the bottom of each main beam, first connecting blocks and second connecting blocks which are fully paved in the auxiliary beams are movably arranged in the auxiliary beams at equal intervals, the first connecting blocks and the second connecting blocks are rhombic, the first connecting blocks and the second connecting blocks are movably arranged in a crossed mode through connecting rods, and the first connecting blocks and the second connecting blocks are movably arranged at the bottom of the main beams.

Preferably, the left side and the right side of the main beam are both fixedly provided with upper traction blocks, the upper traction blocks are provided with symmetrical upper traction holes, and traction columns are movably arranged in the upper traction holes.

Preferably, the left side and the right side of the auxiliary cross beam are fixedly provided with lower traction blocks, the lower traction blocks are provided with symmetrical lower traction holes, the traction columns vertically penetrate through the upper traction holes and the lower traction holes, and the bottom of the auxiliary cross beam is fixedly provided with a clamping block.

Preferably, the bottom of the auxiliary cross beam is provided with a pillar, the pillar is an H-shaped frame, the top of the pillar is provided with a through clamping groove, the clamping block is movably arranged in the clamping groove, and the bottom of the pillar is provided with a rotatable wheel.

Advantageous effects

The invention provides a high-strength gantry crane main beam. The method has the following beneficial effects:

(1) the high-strength portal crane main beam is characterized in that when large goods are loaded, a high-strength portal crane is needed, the large goods are lifted by a crane for conveying and loading, a track is arranged at the top of a main beam, the crane is connected to the inside of the track in a sliding manner, after the goods are lifted by the crane, the crane moves transversely in the track to convey the goods, an auxiliary beam is arranged at the bottom of the main beam, a plurality of groups of first connecting blocks and second connecting blocks are movably arranged in the auxiliary beam, the first connecting blocks and the second connecting blocks are movably arranged in a crossed manner through connecting rods, the first connecting blocks and the second connecting blocks are movably arranged at the bottom of the main beam, when the goods are lifted by the crane, the crane can be influenced by the gravity of the goods, the whole main beam applies force downwards, the auxiliary beam is arranged below the main beam, and the first connecting blocks and the second connecting blocks which are movably arranged on the auxiliary beam provide supporting force for the main beam together, when first connecting block and second connecting block received decurrent pressure, first connecting block and second connecting block can open to both sides, reduce the decurrent pressure of main beam, prevent that the main beam from lifting by crane the back goods overweight, damaging the structure of main beam, have the effect of dispersed pressure and buffering gravity.

(2) This high strength gantry crane girder, because the equal fixed mounting in the left and right sides of main beam has the piece of pulling, on pull and set up symmetrical last traction hole on the piece, the inside movable mounting who goes up the traction hole has the traction post, the equal fixed mounting in the left and right sides of auxiliary beam has the piece of pulling down, set up the lower traction hole of symmetry on the piece of pulling down, through pulling the vertical inside of running through traction hole and lower traction hole of post, the condition that prevents that the main beam from taking place the dislocation when receiving the influence of gravity to be close to auxiliary beam takes place, the effect that has whole device stability improves.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of a main beam of the present invention;

FIG. 3 is a schematic view of a secondary beam of the present invention;

FIG. 4 is a schematic view of a strut according to the present invention;

FIG. 5 is a bottom view of the secondary cross member of the present invention.

Illustration of the drawings:

1. a main cross beam; 2. a track; 3. hoisting a machine; 4. an upper traction block; 5. an upper traction hole; 6. a traction column; 7. a secondary cross beam; 8. a lower traction block; 9. a lower traction hole; 10. a first connection block; 11. a second connecting block; 12. a connecting rod; 13. a clamping block; 14. a pillar; 15. a card slot; 16. and (7) wheels.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

The high-strength portal crane girder comprises two groups of main beams 1 which are symmetrically arranged, as shown in fig. 1-5, the main beams 1 are rectangular blocks, the top of each main beam 1 is provided with a track 2, the track 2 is a rectangular groove, the inside of each track 2 is slidably connected with a crane 3, the cranes 3 are in the prior art, and therefore details are not repeated herein, the bottom of each main beam 1 is provided with an auxiliary beam 7, each auxiliary beam 7 is a rectangular frame with an opening at the top, first connecting blocks 10 and second connecting blocks 11 which are fully paved in the auxiliary beams 7 are movably installed at equal intervals on the auxiliary beams 7, the first connecting blocks 10 and the second connecting blocks 11 are rhombic ground blocks, the first connecting blocks 10 and the second connecting blocks 11 are installed in a crossed and movable mode through connecting rods 12, and the first connecting blocks 10 and the second connecting blocks 11 are both movably installed at the bottom of the main beams 1;

the left side and the right side of the main beam 1 are fixedly provided with upper traction blocks 4, the upper traction blocks 4 are rectangular blocks, symmetrical upper traction holes 5 are formed in the upper traction blocks 4, the upper traction holes 5 are circular through holes, a traction column 6 is movably arranged in each upper traction hole 5, and each traction column 6 consists of a circular column and two discs;

the left side and the right side of the auxiliary cross beam 7 are fixedly provided with lower traction blocks 8, the lower traction blocks 8 are rectangular blocks, the lower traction blocks 8 are arranged under the upper traction blocks 4, symmetrical lower traction holes 9 are formed in the lower traction blocks 8, the lower traction holes 9 are circular through holes, the lower traction holes 9 correspond to the positions under the upper traction holes 5, the traction columns 6 vertically penetrate through the inner parts of the upper traction holes 5 and the lower traction holes 9, the bottom of the auxiliary cross beam 7 is fixedly provided with clamping blocks 13, and the clamping blocks 13 are rectangular blocks;

the bottom of the auxiliary cross beam 7 is provided with a pillar 14, the pillar 14 is an H-shaped frame, the top of the pillar 14 is transversely provided with a through type clamping groove 15, the clamping groove 15 is a rectangular groove, the clamping block 13 is movably installed inside the clamping groove 15, the clamping block 13 slides inside the clamping groove 15, and the bottom of the pillar 14 is provided with a rotatable wheel 16.

When large goods are loaded, a high-strength portal crane is needed to be used, the large goods are lifted by a crane 3 to be transported and loaded, the track 2 is arranged at the top of the main beam 1, the crane 3 is connected to the inside of the track 2 in a sliding manner, after the crane 3 lifts the goods, the crane 3 moves transversely in the track 2 to transport the goods, the auxiliary beam 7 is arranged at the bottom of the main beam 1, a plurality of groups of first connecting blocks 10 and second connecting blocks 11 are movably arranged in the auxiliary beam 7, the first connecting blocks 10 and the second connecting blocks 11 are movably arranged in a crossed manner through connecting rods 12, the first connecting blocks 10 and the second connecting blocks 11 are movably arranged at the bottom of the main beam 1, when the goods are lifted by the crane 3, the crane 3 can be influenced by the gravity of the goods to enable the whole main beam 1 to apply force downwards, so that the auxiliary beam 7 arranged below the main beam 1 is passed through, first connecting block 10 and the second connecting block 11 of movable mounting together provide the holding power to main beam 1 on the auxiliary cross beam 7, when first connecting block 10 and second connecting block 11 received decurrent pressure, first connecting block 10 and second connecting block 11 can open to both sides, reduce main beam 1 decurrent pressure, prevent that main beam 1 goods is overweight after lifting by crane, damage main beam 1's structure, have the effect of dispersed pressure and buffering gravity.

When using, because the equal fixed mounting in the left and right sides of main beam 1 has last traction block 4, go up and offer symmetrical last traction hole 5 on traction block 4, the inside movable mounting who goes up traction hole 5 has traction column 6, the equal fixed mounting in the left and right sides of auxiliary beam 7 has lower traction block 8, set up symmetrical lower traction hole 9 on the lower traction block 8, through the inside of traction column 6 is vertical to run through last traction hole 5 and lower traction hole 9, the condition that prevents that main beam 1 from taking place the dislocation when receiving gravity to influence downwards and being close to auxiliary beam 7 takes place, the effect that improves whole device stability has.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (4)

1. High strength door-type crane girder, including main beam (1) that two sets of symmetries set up, track (2) have been seted up at the top of main beam (1), and the inside sliding connection of track (2) has loop wheel machine (3), its characterized in that: the bottom of main beam (1) is provided with auxiliary beam (7), and the inside equidistance movable mounting of auxiliary beam (7) has first connecting block (10) and second connecting block (11) of spreading in auxiliary beam (7), and first connecting block (10) and second connecting block (11) are the rhombus, and connecting rod (12) alternately movable mounting is passed through in first connecting block (10) and second connecting block (11), the equal movable mounting in the bottom of main beam (1) in first connecting block (10) and second connecting block (11).

2. The high strength gantry crane girder of claim 1, wherein: the left and right sides of main beam (1) all fixed mounting have last traction block (4), go up and offer symmetrical last traction hole (5) on traction block (4), go up the inside movable mounting of traction hole (5) and have traction column (6).

3. The high strength gantry crane girder of claim 1, wherein: the left and right sides of the auxiliary cross beam (7) are fixedly provided with lower traction blocks (8), lower traction holes (9) which are symmetrical are formed in the lower traction blocks (8), the traction columns (6) vertically penetrate through the upper traction holes (5) and the lower traction holes (9), and the bottom of the auxiliary cross beam (7) is fixedly provided with a clamping block (13).

4. The high strength gantry crane girder of claim 1, wherein: the bottom of the auxiliary cross beam (7) is provided with a support column (14), the support column (14) is an H-shaped frame, the top of the support column (14) is provided with a through type clamping groove (15), the clamping block (13) is movably arranged inside the clamping groove (15), and the bottom of the support column (14) is provided with a rotatable wheel (16).

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