Main end beam connecting structure based on large-base-distance bridge crane

Abstract

The utility model discloses a main end beam connecting structure based on a large-base-distance bridge crane. An end beam assembly comprises four end beams arranged on two rails; each group of upper cross beam components is arranged between the two end beams on the same track; the upper cross beam assembly comprises a first cross beam and a second cross beam; one end of the first cross beam is connected with one end of the second cross beam through a connecting assembly; the ends, away from the connecting assembly, of the first cross beam and the second cross beam are connected with the corresponding end beams through pin shaft assemblies. The number of the main beams is two, one main beam is arranged between the two first cross beams in a welded mode, and the other main beam is arranged between the two second cross beams in a welded mode. According to the main end beam connecting structure based on the large-base-distance bridge crane, the main beams are welded between the two first cross beams and the two second cross beams, so that the distance between the two main beams can be adjusted and welded according to actual conditions, the span of a trolley can be kept unchanged, and the defect that a winding drum is provided with a large number of apertures and cannot be applied is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to crane equipment technical field especially relates to a main end beam connecting structure based on big base distance bridge crane. BACKGROUND

[0002] Under the background of the increasing global sustainable development concept, green manufacturing becomes an important direction of the transformation and upgrading of heavy equipment manufacturing industry, and heavy equipment enterprises are actively improving production mode, and at the same time, due to the better development of part of industry, the industry is upgraded in the old factory building, the original track and the rail beam are reserved, when the weight of the hoisted product is upgraded, due to the limited bearing capacity of the single column of the original factory building, the design of the big base distance multi-wheel end beam with increased upper cross beam is needed to distribute the weight borne by each bearing column to achieve the purpose of increasing the lifting capacity.

[0003] Because the connecting beam cannot weld the main beam due to the bearing problem when the connecting beam is used, the span between the two main beams will increase, which further leads to the increase of the track gauge of the trolley installed between the two main beams, the increase of the track gauge of the trolley leads to the increase of the length of the drum on the electric hoist, but since the lifting height does not change, a large number of light rings of the drum cannot be applied, which increases the cost and causes unnecessary waste; in addition, it may cause the main beam to tilt, which has a security risk.

[0004] Therefore, the main end beam connecting structure based on the big base distance bridge crane is provided to solve the problem of the drum light ring and the problem of unstable operation of the main beam of the big base distance crane, and the reliability of the crane operation is ensured. UTILITY MODEL CONTENTS

[0005] In view of the above defects or deficiencies in the prior art, it is desirable to provide a main end beam connecting structure based on a big base distance bridge crane.

[0006] The main end beam connecting structure based on the big base distance bridge crane provided by the utility model is arranged between two parallel tracks, the tracks are arranged on the rail beam, and the main end beam connecting structure is characterized in that it comprises an end beam assembly, an upper cross beam assembly and a main beam.

[0007] The end beam assembly comprises four end beams arranged in a rectangular shape, and the four end beams are symmetrically and slidably arranged on the two tracks.

[0008] The upper cross beam assembly is symmetrically provided with two groups, each group of the upper cross beam assembly is arranged between the two end beams on the same track, the upper cross beam assembly comprises a first cross beam and a second cross beam, one end of the first cross beam is connected to one end of the second cross beam through a connecting assembly, and the other end of the first cross beam and the second cross beam away from the connecting assembly is connected to the corresponding end beam through a pin shaft assembly.

[0009] The main beam is provided with two, one of which is welded between the two first cross beams, and the other is welded between the two second cross beams.

[0010] Further, the connecting assembly includes at least four connecting plates, which are respectively arranged on the circumferential four sides of the connecting ends of the first cross beam and the second cross beam; a plurality of first through holes are uniformly arranged on one side of the plate surface of the connecting plate, and a plurality of second through holes are uniformly arranged on the other side; third through holes are arranged on the circumferential four side plates of one end of the first cross beam close to the second cross beam corresponding to the first through holes, and fourth through holes are arranged on the circumferential four side plates of one end of the second cross beam close to the first cross beam corresponding to the second through holes; a first bolt assembly is arranged through the first through hole and the corresponding third through hole, the second through hole and the corresponding fourth through hole.

[0011] Further, the bottom surface of one end of the first cross beam and the second cross beam away from the connecting assembly is provided with a recessed groove corresponding to the end beam, and the end beam is arranged in the recessed groove.

[0012] Further, the pin shaft assembly includes first pin holes symmetrically arranged on both sides of the recessed groove, second pin holes symmetrically arranged on the two side surfaces of the end beam corresponding to the first pin holes, and lubricating bushings fixedly arranged on the inner sides of the first pin holes and the second pin holes; a pin shaft is arranged through the lubricating bushing in the first pin hole and the lubricating bushing in the corresponding second pin hole, and shaft end clamping plate assemblies are arranged at both ends of the pin shaft outside the recessed groove, for limiting the pin shaft in the axial direction.

[0013] Further, the pin shaft is symmetrically provided with a clamping groove at both ends; the shaft end clamping plate assembly includes a shaft end clamping plate, which is fixedly arranged on the side surface of the recessed groove through a second bolt assembly, and one side of the shaft end clamping plate is clamped into the recessed groove.

[0014] Further, the middle part of the two ends of the pin shaft is provided with an oil injection main channel along the axial direction, and the oil injection main channel is provided with an oil injection branch channel in communication with the lubricating bushing in the first pin hole and the lubricating bushing in the second pin hole.

[0015] Further, the connection between the main beam and the corresponding first cross beam or second cross beam is welded with a right-angle reinforcing rib plate, for ensuring that the main beam and the corresponding first cross beam or second cross beam are perpendicular to each other.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The main end beam connecting structure based on the large-base-span bridge crane has the advantages that the main beams are welded between the two first cross beams and the two second cross beams, so the distance between the two main beams can be adjusted and welded according to actual conditions, the span of the trolley can be kept unchanged, and the disadvantage that a large number of light circles of the drum cannot be applied is avoided.

[0018] In addition, the main beam and the first cross beam or the second cross beam are supplemented by welding with the right-angle reinforcing rib plate, so that the perpendicularity of the first cross beam or the second cross beam and the main beam can be better ensured, and the end beam is prevented from gnawing the rail.

[0019] The first cross beam and the second cross beam in each group of the upper cross beam assembly are detachably connected through the connecting assembly, so that the first cross beam and the second cross beam can be transported separately, space can be saved, and transportation cost can be reduced.

[0020] The end portion of the first cross beam and the second cross beam is left with a space, the end beam is embedded in the first cross beam or the second cross beam, and then the pin shaft is connected, so that the connection strength between the main end beams can be better ensured; since the end beam is embedded in the corresponding concave groove, a certain gap is left between the end beam and the concave groove, automatic compensation can be realized during operation, the angle of the wheel on the end beam can be better automatically adjusted, uniform stress of the wheel is ensured, and operation is more stable.

[0021] The technical scheme of the present application solves the problem of the maximum lifting capacity limitation of the old factory building, ensures stable operation of the crane, and is suitable for various forms of running tracks.

[0022] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model.

[0023] Other features of the utility model will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0024] Other features, objects and advantages of the utility model will become more apparent through reading the detailed description of the non-limiting embodiments made by referring to the following drawings:

[0025] Fig. 1 A structure schematic view of a main end beam connecting structure based on a large-base-span bridge crane provided for the utility model embodiments;

[0026] Fig. 2 An enlarged structure schematic view of the structure at A;

[0027] Fig. 3 An enlarged structure schematic view of the structure at B;

[0028] Fig. 4 This is a top view of the connection end between the first and second crossbeams.

[0029] Fig. 5 This is a schematic diagram of the pin assembly.

[0030] Fig. 6 This is an exploded view of the pin assembly;

[0031] Fig. 7 A schematic diagram of the cross-section of the assembled pin assembly;

[0032] The diagram labels are as follows: 1. End beam; 2. Upper crossbeam assembly; 21. First crossbeam; 22. Second crossbeam; 23. Concave groove; 3. Connecting assembly; 31. Connecting plate; 32. First bolt assembly; 33. First through hole; 34. Second through hole; 35. Third through hole; 36. Fourth through hole; 4. Pin assembly; 41. First pin hole; 42. Second pin hole; 43. Lubricating bushing; 44. Pin; 45. Slot; 46. Main oil injection channel; 47. Sub-channel for oil injection; 5. Shaft end clamping plate assembly; 51. Shaft end clamping plate; 52. Second bolt assembly; 6. Main beam; 7. Right-angle reinforcing rib plate. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0034] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] Please refer to Figs. 1-7 This utility model provides a main end beam connection structure for a large-base-spacing bridge crane, which is set between two parallel rails, with the rails mounted on a rail-bearing beam. The structure includes an end beam assembly, an upper crossbeam assembly 2, and a main beam 6.

[0036] The end beam assembly includes four end beams 1 arranged in a rectangular shape, which are symmetrically slidably mounted on two tracks in pairs; the length direction of the four end beams 1 is arranged along the length direction of the tracks.

[0037] The upper beam assembly 2 is symmetrically provided with two groups, and each group of the upper beam assembly 2 is arranged between two end beams 1 on the same track; the upper beam assembly 2 comprises a first cross beam 21 and a second cross beam 22, one end of the first cross beam 21 and one end of the second cross beam 22 are connected through a connecting assembly 3; the end of the first cross beam 21 and the end of the second cross beam 22 away from the connecting assembly 3 are connected with the corresponding end beam 1 through a pin shaft assembly 4;

[0038] The first cross beam 21 and the second cross beam 22 are connected through the connecting assembly 3 to form a complete upper beam;

[0039] In a preferred embodiment, the connecting assembly 3 comprises at least four connecting plates 31, and the four connecting plates 31 are arranged on the circumferential four sides of the connecting end of the first cross beam 21 and the second cross beam 22 respectively; a plurality of first through holes 33 are uniformly arranged on one side of the plate surface of the connecting plate 31, and a plurality of second through holes 34 are uniformly arranged on the other side; a third through hole 35 is arranged on the circumferential four side plates of the end of the first cross beam 21 close to the second cross beam 22 corresponding to the first through hole 33, and a fourth through hole 36 is arranged on the circumferential four side plates of the end of the second cross beam 22 close to the first cross beam 21 corresponding to the second through hole 34; a first bolt assembly 32 is arranged through the first through hole 33 and the corresponding third through hole 35, the second through hole 34 and the corresponding fourth through hole 36.

[0040] That is, the third through hole 35 on the first cross beam 21, the fourth through hole 36 on the second cross beam 22, and the first through hole 33 and the second through hole 34 on the connecting plate 31 are connected through the first bolt assembly 32 to stably connect one end of the first cross beam 21 and one end of the second cross beam 22.

[0041] In addition, the web plate on the first cross beam 21 and the second cross beam 22 is provided with a hand hole near the corresponding third through hole 35 and the fourth through hole 36 for tightening the first bolt assembly 32, and a hand hole cover is additionally provided for preliminary protection.

[0042] In a preferred embodiment, the bottom surface of the end of the first cross beam 21 and the second cross beam 22 away from the connecting assembly 3 is provided with a recessed groove 23 corresponding to the end beam 1, the upper part of the end beam 1 is arranged in the inside of the corresponding recessed groove 23, and the three surfaces between the end beam 1 and the recessed groove 23 are left with a certain gap, and the end beam 1 and the first cross beam 21 and the second cross beam 22 are connected by pin shaft cooperation, which can better automatically adjust the angle of the end beam 1 and make the operation more stable.

[0043] In a preferred embodiment, the pin shaft assembly 4 comprises symmetrical first pin holes 41 arranged on both sides of the concave groove 23, and symmetrical second pin holes 42 arranged on both sides of the end beam 1 corresponding to the first pin holes 41, and the inner sides of the first pin holes 41 and the inner sides of the second pin holes 42 are fixedly provided with lubricating shaft sleeves 43, and the pin shaft 44 is arranged through the lubricating shaft sleeve 43 in the first pin hole 41 and the lubricating shaft sleeve 43 in the corresponding second pin hole 42, and the pin shaft 44 is arranged with the shaft end clamping plate assembly 5 at both ends outside the corresponding concave groove 23 for limiting the axial movement of the pin shaft 44.

[0044] In a preferred embodiment, the pin shaft 44 is symmetrically provided with a clamping groove 45 at both ends; the shaft end clamping plate assembly 5 comprises a shaft end clamping plate 51 fixedly arranged on the side surface of the concave groove 23 through the second bolt assembly 52, and one side of the shaft end clamping plate 51 is clamped into the inside of the corresponding clamping groove 45, so that the pin shaft 44 cannot move axially.

[0045] In a preferred embodiment, the middle part of the pin shaft 44 at both ends is provided with an oil injection main channel 46 along the axial direction, and the oil injection main channel 46 is provided with an oil injection branch channel 47 connected therewith corresponding to the lubricating shaft sleeve 43 in the first pin hole 41 and the lubricating shaft sleeve 43 in the second pin hole 42; the lubricating oil can be injected from the oil injection main channel 46 at both ends of the pin shaft 44, so that the lubricating oil can be injected into the lubricating shaft sleeve 43 in the first pin hole 41 and the lubricating shaft sleeve 43 in the second pin hole 42 without dismounting the pin shaft 44.

[0046] The main beam 6 is provided with two, one main beam 6 is welded between the two first cross beams 21, and the other main beam 6 is welded between the two second cross beams 22, so that the welding position of the two main beams 6 can be welded according to the actual situation, that is, the span of the two main beams 6 is adjustable, and the span of the trolley between the two main beams 6 can remain unchanged, so that the problem of the light circle of the electric hoist winding drum (the meaning of the light circle of the winding drum is that the steel wire rope does not cover the winding drum completely, so that a part of the winding drum is not applied) does not occur.

[0047] In a preferred embodiment, the connection between the main beam 6 and the corresponding first cross beam 21 or second cross beam 22 is limited by the right-angle reinforcing rib plate 7 to be fixed together by angle welding, so as to ensure that the main beam 6 and the corresponding first cross beam 21 or second cross beam 22 are perpendicular to each other.

[0048] In summary, the utility model can meet the requirements of the end beam with large base distance, the main beam is welded with the upper cross beam, and then connected with the end beam part through the pin shaft, so that the main beam can better ensure stable operation during operation, and the embedded structure is more convenient for the scale production of the end beam and the replacement of the subsequent end beam and accessories.

[0049] In the description of the present specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0050] In the description of the present specification, the description of the terms "one embodiment", "some embodiments" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A main end beam connecting structure based on a large-base- span bridge crane, provided between two parallel tracks provided on a bearing girder, characterized in that, It comprises an end beam assembly, an upper beam assembly and a main beam. The end beam assembly comprises four end beams symmetrically arranged on the two tracks. The upper beam assembly comprises two groups of first and second cross beams. The main beam is welded between the two first cross beams or the two second cross beams.

2. The main end girder connection structure based on the large-bay- span bridge crane according to claim 1, characterized in that, The connecting assembly comprises four connecting plates symmetrically arranged on the four sides of the first and second cross beams.

3. The main end girder connection structure based on the large-base- span bridge crane according to claim 1, characterized in that, The first and second cross beams are connected to the end beams through the connecting assembly.

4. The main end girder connection structure based on the large-base- span bridge crane according to claim 3, characterized in that, The pin shaft assembly comprises first pin holes symmetrically arranged on the two sides of the recessed groove.

5. The main end girder connection structure based on the large-base- span bridge crane according to claim 4, characterized in that, The pin shaft is provided with oil injection main channels and oil injection branch channels.

6. The main end girder connection structure based on the large-base- span bridge crane according to claim 4, characterized in that, The main beam is connected to the first or second cross beam through the right-angle reinforcing rib.

7. The main end girder connection structure based on the long-span bridge crane according to claim 1, characterized in that, ​

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