CN210682973U

CN210682973U - Crane walking frame capable of improving bearing capacity of I-beam

Info

Publication number: CN210682973U
Application number: CN201920773902.7U
Authority: CN
Inventors: 翟永刚
Original assignee: Xiamen Zhongqi Crane Co ltd
Current assignee: Xiamen Zhongqi Crane Co ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-06-05
Anticipated expiration: 2029-05-28

Abstract

The utility model relates to a crane walking frame for improving the bearing capacity of an I-beam, which comprises an installation frame, a walking wheel and a walking motor, wherein the walking wheel and the walking motor are fixedly assembled on the installation frame; the installation frame is the U font, two curb plates of this installation frame respectively by the both sides of I-beam upwards extend, walking wheel dead axle assembles on this curb plate with rotating, and this walking wheel is walked in the top surface of the roof of I-beam. The crane walking frame slides on the top of the I-beam, the top surface bearing space of the top plate is large, and the walking wheels with large wheel surface width can be configured, so that the load of the walking frame is integrally borne by the I-beam, the I-beam with various structural modes can be selected, and the integral size of the I-beam with the same strength requirement can be smaller.

Description

Crane walking frame capable of improving bearing capacity of I-beam

Technical Field

The utility model relates to a bridge crane field especially indicates a crane walking frame who improves I-beam bearing capacity.

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.

The walking wheels of the walking frame of most of the existing cranes walk on the bottom plate of the I-shaped beam, which requires that the bottom plate of the I-shaped beam has enough walking wheel walking space, so that the I-shaped beam can only adopt a structure with a large bottom plate and a large top plate and a small connecting wall plate thickness, and the size of the I-shaped beam is large. In addition, the bottom plate of the I-beam directly bears the downward pressure of the travelling wheels, the acting forces of the bottom plate on the connecting wall plate and the connecting wall plate on the top plate are downward tensile forces, and the force-bearing and force-unloading effects of the connecting wall plate and the top plate on the left side and the right side of the bottom plate are small, so that the required size requirement of the I-beam is high.

Disclosure of Invention

The utility model provides an improve I-beam bearing capacity's hoist walking frame to the main load position of the I-beam that solves the existence of current majority bridge crane is the bottom plate, and bearing capacity is less, and required model is great, the higher problem of cost.

The utility model adopts the following technical scheme:

the crane walking frame comprises an installation frame, and a walking wheel and a walking motor which are fixedly assembled on the installation frame, wherein the walking frame directionally moves along the length extension direction of an I-beam through the walking wheel driven by the walking motor, and the I-beam is formed by sequentially and fixedly connecting a bottom plate, a connecting wall plate and a top plate into a whole. The mounting frame is U-shaped, two side plates of the mounting frame respectively extend upwards from two sides of the I-shaped beam, the traveling wheels are rotatably assembled on the side plates, and the traveling wheels travel on the top surface of the top plate of the I-shaped beam.

The mounting frame is further provided with a limiting wheel, the limiting wheel slides along the length extending direction of the connecting wall plate in a rolling contact mode, and the limiting wheel is used for limiting the mounting frame to deviate along the width direction of the bottom plate. Further, the installation frame is configured with at least two of opposition distribution spacing round, connect the wallboard clamp and locate between two opposition spacing rounds.

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 walks the top of frame and I-beam and slides for the load of vertical walking frame is born the weight of by I-beam wholly, and can dispose the great walking wheel of wheel face width because the top surface of the roof of I-beam has sufficient bearing space, and because the bottom plate of I-beam need not dispose the walking space of walking wheel, for this reason, the connecting wall board of connecting roof and bottom plate can strengthen the structural strength of I-beam through means such as increase thickness or increase the quantity of setting up of this wallboard (if set up two connecting wall boards) and change its set position (if connecting wall board can locate the outer position of bottom plate width direction), strengthen the load-carrying capacity and the increase of service life of I-beam; or the overall size of the I-beam can be reduced under the same load capacity requirement.

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 crane walking frame capable of improving the bearing capacity of the i-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 reference to fig. 1 and 2, the mounting frame 31 of the longitudinal traveling frame 3 is U-shaped, two side plates 311 of the mounting frame 31 extend upward from both sides of the longitudinal main beam 1, the traveling wheels 32 of the longitudinal traveling frame 3 are pivotally mounted on the side plates 311, and the traveling wheels 32 travel on the top surface of the top plate 13 of the longitudinal main beam 1. The longitudinal traveling frame 3 slides on the top of the longitudinal main beam 1, so that the load of the longitudinal traveling frame 3 is borne by the longitudinal main beam 1 as a whole (referring to fig. 1, when the traveling wheels 32 travel on the bottom of the longitudinal main beam 1, the acting force of the bottom plate 11 bearing the load is the acting force pulling downwards on the connecting wall plate 12, the acting force of the connecting wall plate 12 on the top plate 13 is also the pulling force downwards, the connecting area and the connecting strength of the upper and lower side edges of the connecting wall plate 12 and the top plate 13 and the bottom plate 11 are both higher, the traveling wheels 32 with larger wheel surface width can be configured because the top surface of the top plate 13 of the longitudinal main beam 1 has enough bearing space, and the traveling wheels 32 with larger wheel surface width can be configured because the bottom plate 11 of the longitudinal main beam 1 does not need to be configured with the traveling space of the traveling wheels 32, for this reason, the connecting wall plates 12 connecting the top plate 13 and the bottom plate 11 can be configured by increasing the thickness or increasing the External position), and the like, to reinforce the structural strength of the longitudinal main beam 1, enhance the load capacity of the longitudinal main beam 1 and prolong the service life; or, under the same load capacity requirement, the whole size of the longitudinal main beam 1 can be reduced.

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 traveling motors 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 longitudinal extension direction of the top plate 13 by the traveling wheels 32 driven by the traveling motors, the limiting wheels 33 slide along the longitudinal 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 bottom 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 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 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

1. A crane walking frame for improving the bearing capacity of an I-beam comprises an installation frame, and a walking wheel and a walking motor which are fixedly assembled on the installation frame, wherein the walking frame directionally moves along the length extension direction of the I-beam through the walking wheel driven by the walking motor, and the I-beam is formed by sequentially and fixedly connecting a bottom plate, a connecting wall plate and a top plate into a whole; the method is characterized in that: the mounting frame is U-shaped, two side plates of the mounting frame respectively extend upwards from two sides of the I-shaped beam, the traveling wheels are rotatably assembled on the side plates, and the traveling wheels travel on the top surface of the top plate of the I-shaped beam.

2. A crane traveling frame for improving the load-bearing capacity of an i-beam as claimed in claim 1, wherein: the mounting frame is further provided with a limiting wheel, the limiting wheel slides along the length extending direction of the connecting wall plate in a rolling contact mode, and the limiting wheel is used for limiting the mounting frame to deviate along the width direction of the bottom plate.

3. A crane traveling frame for improving the load-bearing capacity of an i-beam as claimed in claim 2, wherein: the installation frame is configured with at least two of opposition distribution spacing round, the connection wallboard clamp is located between two opposition spacing rounds.