CN210682994U - Bridge crane with extending beam prevented from tilting - Google Patents

Abstract

The utility model relates to a bridge crane with an extending beam for preventing the extending beam from tilting, which comprises a longitudinal girder and a crossbeam, wherein the cross section of the longitudinal girder is I-shaped; the cross beam is provided with an extension beam, the extension beam is assembled below the cross beam in a sliding manner through the transverse walking frame, and the extension beam is assembled with a hoisting trolley for hoisting a heavy object; the transverse walking frame is fixedly assembled between the center of the extension beam and the bearing end of the extension beam, the bearing end is fixedly assembled with an anti-warping pulley, the anti-warping pulley slides along the bottom surface of the cross beam in a rolling manner, and at least one transverse walking frame is arranged between the anti-warping pulley and the extension end. The condition that the bearing end of extending the roof beam perk that can prevent well through the setting of this proof warp pulley takes place for the extending roof beam can keep the parallel state with the crossbeam better, makes horizontal walking frame and trolley can slide along the horizontal direction, and the jack-up operation of trolley each position on extending the roof beam is more steady.

Description

Bridge crane with extending beam prevented from tilting

Technical Field

The utility model relates to a bridge type jack-up field especially indicates a bridge crane that perk was prevented to extension roof beam.

Background

The bridge crane is a hoisting device which is transversely arranged above workshops, warehouses and stockyards to hoist materials. The bridge crane features that the load hung on the hook or other load taking device can be lifted vertically or moved horizontally. The bridge crane includes hoisting mechanism, large and small carriage running mechanism. The weight can be lifted and carried in a certain cubic space by means of the matching action of the mechanisms.

A plurality of support columns for supporting the ceiling framework need to be arranged in existing plants, the support columns cannot be spanned when the cross beams slide along the main beams, therefore, extension beams which can slide in a telescopic mode are arranged on part of the bridge crane, when the extension beams extend outwards, the crane trolley is located at the outer ends of the extension beams, the inner ends of the extension beams are prone to tilting, and potential safety hazards exist in the crane.

Disclosure of Invention

The utility model provides a bridge crane who sticks up is prevented to extension roof beam to the extension roof beam that solves current most bridge crane existence has inner perk and has the problem of potential safety hazard.

The utility model adopts the following technical scheme:

a bridge crane with an extension beam prevented from tilting comprises a longitudinal main beam and a cross beam, wherein the longitudinal main beam and the cross beam are respectively formed by sequentially and fixedly connecting a bottom plate, a connecting wall plate and a top plate into a whole, and the cross sections of the longitudinal main beam and the cross beam are I-shaped; the longitudinal main beam is fixedly assembled on the supporting carrier, the transverse beam is provided with a longitudinal walking frame, and the transverse beam is assembled below the longitudinal main beam in a sliding manner through the longitudinal walking frame.

The beam is provided with an extension beam, the extension beam is assembled below the beam in a sliding mode through the transverse walking frame, and the extension beam is assembled with a crane trolley used for hoisting heavy objects. The extension beam comprises an extension end and a bearing end, and the extension beam slides and extends towards the direction of the extension end; the transverse walking frame is fixedly assembled between the center of the extension beam and the bearing end, the bearing end is fixedly assembled with the anti-warping pulley, the anti-warping pulley slides along the bottom surface of the cross beam in a rolling manner, and at least one transverse walking frame is arranged between the anti-warping pulley and the extension end.

In a further improvement, the extension beam is provided with two transverse traveling frames, and the anti-tilting pulley is arranged between the two transverse traveling frames or between the two transverse traveling frames and the bearing end.

In a further improvement, the longitudinal traveling frame and the transverse traveling frame respectively comprise an installation frame, traveling wheels, limiting wheels and a traveling motor, wherein the traveling wheels, the limiting wheels and the traveling motor are fixedly assembled on the installation frame, the traveling frames directionally move along the length extension direction of the bottom plate through the traveling wheels driven by the traveling motor, the limiting wheels slide along the length extension direction of the connecting wall plate in a rolling contact mode, and the limiting wheels are used for limiting the installation frame to deviate along the width direction of the bottom plate.

In a further improvement, the mounting frame is provided with at least two limiting wheels which are distributed oppositely, and the connecting wall plate is clamped between the two opposite limiting wheels.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the utility model discloses a hoist can prevent well through the setting of this proof warp pulley that the bearing end of extending the roof beam from upwards perk the condition emergence for extend the roof beam can keep better with the parallel state of crossbeam, make horizontal walking frame and trolley can follow the horizontal direction and slide, the jack-up operation of trolley each position on extending the roof beam is more steady.

Drawings

Fig. 1 is a schematic view of the front view structure of the crane of the present invention.

Fig. 2 is a schematic view of the overhead structure of the crane of the present invention.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1 and 2, the bridge crane with the anti-tilting extension beam comprises a longitudinal main beam 1 and a cross beam 2, wherein the longitudinal main beam 1 and the cross beam 2 are respectively formed by fixedly connecting a bottom plate 11, a connecting wall plate 12 and a top plate 13 into a whole in sequence, and the cross sections of the longitudinal main beam 1 and the cross beam 2 are both in an I shape; the longitudinal main beam 1 is fixedly assembled on a support carrier (as shown in fig. 2, the support carrier is preferably a cement support column 14 standing on the ground, a metal framework 15 positioned above the longitudinal main beam 1 and the like), the transverse beam 2 is provided with a longitudinal walking frame 3, and the transverse beam 2 is assembled below the longitudinal main beam 1 in a sliding mode through the longitudinal walking frame 3.

With continued reference to fig. 1 and 2, the beam 2 is provided with an extension beam 4, the extension beam 4 is slidably mounted below the beam 2 through a transverse traveling frame 5, and the extension beam 4 is provided with a crane trolley 6 for hoisting a heavy object. As shown in fig. 2, the extension beam 4 can span the support column 14 of the construction site to expand the traveling range of the crane trolley 6 in the extension direction of the cross beam 2 by the traveling telescopic operation of the extension beam, so that the lifting area is effectively increased, the adaptability of the crane to the construction site is enhanced, and the crane has wider adaptability.

With continued reference to fig. 1 and 2, each of the longitudinal traveling frame 3 and the transverse traveling frame 5 includes a mounting frame 31, and traveling wheels 32, limiting wheels 33 and a traveling motor fixedly mounted on the mounting frame 31, the traveling frame (including the longitudinal traveling frame 3 and the transverse traveling frame 5) is directionally moved along the length extension direction of the base plate 11 by the traveling wheels 32 driven by the traveling motor, the limiting wheels 33 slide along the length extension direction of the connecting wall plate 12 in rolling contact, and the limiting wheels 33 are used for limiting the mounting frame 31 from shifting along the width direction of the base plate 11. Preferably, each of the mounting frames 31 is provided with four limiting wheels 33 which are oppositely distributed, and the connecting wall plate 12 is sandwiched between the two opposite limiting wheels 33. Through the configuration of spacing wheel 33 on the walking frame, make it have limiting displacement to the width direction of walking frame on the roof beam of place, effectively reduce walking wheel 32 and take place the aversion condition of width direction in the walking, and then effectively reduce the wearing and tearing probability of walking wheel 32 and bottom plate 11 lateral wall, both effectively reduce walking frame and break away from the probability for the operation of walking frame is safer, has also effectively reduced the noise of walking frame operation, noise pollution abatement.

With reference to fig. 1 and 2, the trolley 6 includes a crane traveling frame 61 and a hoist 62 mounted on the crane traveling frame 61, and the crane traveling frame 61 is mounted on the extension beam 4 in a manner of being driven by a motor; a hoisting rope 63 is wound around a reel of the hoisting machine 62, an inner end of the hoisting rope 63 is fixed to the reel of the hoisting machine 62, an outer end 631 of the hoisting rope 63 is fixedly assembled to the hoisting traveling frame 61 independently of the hoisting machine 62, a hook 64 of the hoisting machine 62 is slidably hung between the inner end and the outer end of the hoisting rope 63 through a pulley, and a space which does not interfere with the up-and-down movement of the hook 64 is provided between the hoisting machine 62 and the outer end of the hoisting rope 63. The height of the outer end of the hoisting line 63 is not lower than the height of the hoisting line 63 at the output 632 of the hoist 62. This hoisting rope 63 structure of trolley 6 sets up and makes the height that couple 64 can go upward bigger to make the height dimension of jack-up walking frame 61 can reach littleer, make it can get into the operation of getting of realizing getting of low air inlet heavy object in the less height dimension space, adapt to more site conditions and use, the suitability is wider.

With reference to fig. 1 and 2, the traveling wheels 32 are borderless traveling wheels 32, the traveling wheels 32 are disposed on two sides of the connecting wall plate 12 and parallel to the connecting wall plate 12, the traveling wheels 32 slide on the upper surface of the bottom plate 11 or the top plate 13, and a side wall of the traveling wheels 32 away from the connecting wall plate 12 is disposed on the inner side of the sliding surface of the traveling wheels 32. This no limit walking wheel 32's no limit structure sets up for the walking position of walking wheel 32 can avoid the edge and more be close to the connection wallboard 12 at middle part, can enough effectively avoid walking wheel 32 to the wearing and tearing at bottom plate 11 or roof 13 edge, and the noise reduction prolongs the life of walking wheel 32 and place roof beam, also can effectively reduce the probability that the walking wheel 32 drops on by the walking track, improves the factor of safety of operation.

With continued reference to fig. 1 and 2, the extension beam 4 includes an extension end 41 and a bearing end 42, and the extension beam 4 extends towards the extension end 41 in a sliding manner; the transverse traveling frame 5 is fixedly assembled between the center of the extension beam 4 and the bearing end 42, the bearing end 42 is fixedly assembled with an anti-tilting pulley 43, the anti-tilting pulley 43 slides along the bottom surface of the cross beam 2 in a rolling manner, and at least one transverse traveling frame 5 is arranged between the anti-tilting pulley 43 and the extension end 41. Preferably, the extension beam 4 has two lateral traveling frames 5, and the warp prevention pulley 43 is provided between the two lateral traveling frames 5, or the warp prevention pulley 43 is provided between the two lateral traveling frames 5 and the load bearing end 42. The situation that the bearing end 42 of the extension beam 4 is tilted upwards can be well prevented through the arrangement of the tilting prevention pulley 43, the extension beam 4 can be kept in a parallel state with the cross beam 2 better, the transverse walking frame 5 and the trolley 6 can slide along the horizontal direction, and the hoisting operation of the trolley 6 at each position on the extension beam 4 is more stable. In addition, as shown in fig. 1, the longitudinal main beam 1, the cross beam 2 and the extension beam 4 are respectively and fixedly provided with a limit block 16 at two ends of the walking track of the corresponding walking frame, and the limit blocks 16 are used for blocking and limiting the walking wheels 32 of each walking frame to prevent the walking wheels 32 from being separated from the walking track.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (2)

1. A bridge crane with an extension beam prevented from tilting comprises a longitudinal main beam and a cross beam, wherein the cross sections of the longitudinal main beam and the cross beam are I-shaped; the longitudinal main beam is fixedly assembled on the support carrier, the transverse beam is provided with a longitudinal walking frame, and the transverse beam is assembled below the longitudinal main beam in a sliding manner through the longitudinal walking frame; the method is characterized in that: the transverse beam is provided with an extension beam, the extension beam is assembled below the transverse beam in a sliding manner through a transverse walking frame, and the extension beam is assembled with a hoisting trolley for hoisting a heavy object; the extension beam comprises an extension end and a bearing end, and the extension beam slides and extends towards the direction of the extension end; the transverse walking frame is fixedly assembled between the center of the extension beam and the bearing end, the bearing end is fixedly assembled with an anti-warping pulley, the anti-warping pulley slides along the bottom surface of the cross beam in a rolling manner, and at least one transverse walking frame is arranged between the anti-warping pulley and the extension end.

2. The bridge crane with the tilting-proof extension beam as claimed in claim 1, wherein: the extension beam is provided with two transverse traveling frames, the anti-warping pulley is arranged between the two transverse traveling frames, or the anti-warping pulley is arranged between the two transverse traveling frames and the bearing end.

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