Adjustable load bearing beam and crane

Abstract

The utility model discloses an adjustable bearing beam belongs to hoisting equipment technical field, include: trolley end beam, be located on the trolley end beam's limiting component, be located on the limiting component's adjusting assembly and with trolley end beam links to each other with adjusting assembly and abuts the bearing beam of interface, wherein, adjusting assembly and limiting component are adapted for adjusting the direction of bearing beam, limiting component includes: first limit board, second limit board and third limit board, wherein, one end of first limit board and third limit board is perpendicular to the same side of second limit board respectively, forms the U shape structure of three face enclosure and one side opening. The utility model discloses utilize adjusting assembly and push bearing beam, has realized satisfying assembly requirement, reduces the technical effect of error.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to an adjustable load-bearing beam and a crane. Background Technology

[0002] The trolley load-bearing beam is the box-shaped main beam in the trolley frame of an electric double-girder bridge crane that directly bears the drum and the suspended load and transmits the wheel pressure to the bridge rail.

[0003] In existing technologies, during the assembly process of electric double-girder bridge cranes, the trolley load-bearing beam is typically connected to the trolley end beam using bolts. However, due to factors such as the large mass of the components, limited space, and difficulty in fixing measurement benchmarks, the longitudinal centerline of the load-bearing beam does not coincide with the centerline of the trolley track after assembly, resulting in a certain error. In addition, the centerline of the stop on the load-bearing beam that mates with the drum bearing seat may also have errors compared to the theoretical length centerline of the drum. Utility Model Content

[0004] To address the aforementioned problems, the first aspect of this utility model provides an adjustable load-bearing beam, comprising: The trolley end beam includes a limiting component on the trolley end beam, an adjusting component on the limiting component, and a load-bearing beam connected to the trolley end beam and abutting against the adjusting component, wherein the adjusting component is adapted to the limiting component for adjusting the orientation of the load-bearing beam. The limiting component includes: a first limiting plate, a second limiting plate, and a third limiting plate, wherein one end of the first limiting plate and the third limiting plate are respectively vertically connected to the same side of the second limiting plate, forming a U-shaped structure that is enclosed on three sides and open on one side. The first limiting plate, the second limiting plate and the third limiting plate are all provided with mounting holes that are compatible with the adjustment component; The adjusting assembly includes: an abutment bolt and a limiting nut adapted to the abutment bolt; The abutment bolt is threadedly connected to the mounting hole, and one end of the abutment bolt abuts against the load-bearing beam. The load-bearing beam is pushed up by adjusting the abutment bolt to adjust the orientation of the load-bearing beam.

[0005] Preferably, the end of the abutting bolt away from the bolt head is further provided with a rod-shaped connecting part.

[0006] Preferably, the diameter of the abutting bolt is larger than the diameter of the connecting portion. The connection between the abutting bolt and the connecting part is a stepped surface, and the step surface abuts against the load-bearing beam when the limiting component abuts against the load-bearing beam.

[0007] Preferably, the load-bearing beam is provided with a connecting hole that matches the connecting part, and when the limiting component abuts against the load-bearing beam, the connecting part is connected to the connecting hole.

[0008] Preferably, the first limiting plate, the second limiting plate, and the third limiting plate are all provided with adjustment components.

[0009] The second aspect of this utility model provides a crane, including the adjustable load-bearing beam described in any of the above embodiments.

[0010] By adopting the above technical solution, this utility model mainly has the following technical effects: By using the adjusting components to push the load-bearing beam, the longitudinal centerline of the load-bearing beam is made to coincide with the centerline of the trolley track, and the centerline of the stop on the load-bearing beam that mates with the drum bearing seat is made to coincide with the centerline of the theoretical length of the drum, thereby achieving the technical effect of meeting assembly requirements and reducing errors. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of an adjustable load-bearing beam according to the present invention; Figure 2 This is a structural schematic diagram of an adjustable load-bearing beam according to the present invention (from another perspective); Figure 3 This is a structural schematic diagram of an adjustable load-bearing beam according to the present invention (from another perspective); Figure 4 for Figure 2 Enlarged view of section A; Figure 5 This is a schematic diagram of the adjusting component in an adjustable load-bearing beam according to the present invention.

[0012] The meanings of the reference numerals in the attached figures are as follows: 1. Trolley end beam; 2. Limiting components; 21. First limiting plate; 22. Second limiting plate; 23. Third limiting plate; 24. Mounting holes; 3. Adjustment component; 31. Abutment bolt; 32. Limit nut; 33. Connecting part; 34. Stepped surface; 4. Load-bearing beam; 41. Connecting hole. Detailed Implementation

[0013] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0014] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0015] Please see Figures 1-5 The first aspect of this utility model provides an adjustable load-bearing beam. In practical application, the two load-bearing beams are arranged in parallel with each other, and the two ends of each load-bearing beam are respectively supported on the trolley structure at the corresponding position to form a stable support frame. The drum is installed in the middle position between the two load-bearing beams.

[0016] Furthermore, the adjustable load-bearing beam includes: a trolley end beam 1, a limiting component 2 disposed on the trolley end beam 1, an adjusting component 3 disposed on the limiting component 2, and a load-bearing beam 4 connected to the trolley end beam 1 and abutting against the adjusting component 3, wherein the adjusting component 3 is adapted to the limiting component 2 for adjusting the orientation of the load-bearing beam 4.

[0017] In some embodiments, the trolley end beam 1 can be mounted on the trolley of the crane. In some embodiments, the trolley is a movable structure mounted on the main beam of the crane, which can run along the transverse direction of the main beam (perpendicular to the crane track), thereby moving the load-bearing beam 4.

[0018] In some embodiments, the limiting component 2 is disposed on the trolley end beam 1 and is used to limit the load-bearing beam 4. In some embodiments, the limiting component 2 includes: a first limiting plate 21, a second limiting plate 22, and a third limiting plate 23, wherein one end of the first limiting plate 21 and the third limiting plate 23 are respectively vertically connected to the same side of the second limiting plate 22, forming a U-shaped structure that is enclosed on three sides and open on one side. The U-shaped structure can surround one end of the load-bearing beam 4 through the one-side opening. In some embodiments, the adjusting component 3 is movably connected to the limiting component 2 and is used to adjust the orientation of the load-bearing beam 4 after abutting against it. The specific adjustment process will be further described below.

[0019] Furthermore, the first limiting plate 21, the second limiting plate 22, and the third limiting plate 23 are all provided with mounting holes 24 that are adapted to the adjusting component 3. In some embodiments, the adjusting component 3 includes: an abutment bolt 31 and a limiting nut 32 adapted to the abutment bolt 31. The abutment bolt 31 is adapted to the mounting hole 24. After the abutment bolt 31 is threadedly connected to the mounting hole 24, the abutment bolt 31 can be turned so that one end of the abutment bolt 31 abuts against the load-bearing beam 4. On the one hand, the load-bearing beam 4 is limited by the abutment bolt 31 abutting against the load-bearing beam 4. On the other hand, the orientation of the load-bearing beam 4 can be adjusted by adjusting the abutment bolt 31 to push the load-bearing beam 4.

[0020] Furthermore, after the load-bearing beam 4 has been adjusted in position, the adjusting component 3 and the limiting component 2 can be securely connected by tightening the limiting nut 32.

[0021] In some more preferred embodiments, the end of the abutting bolt 31 away from the bolt head is further provided with a rod-shaped connecting portion 33, wherein the diameter of the abutting bolt 31 is larger than the diameter of the connecting portion 33, thereby forming a stepped surface 34 at the connection between the abutting bolt 31 and the connecting portion 33. Further, the load-bearing beam 4 is provided with a connecting hole 41 adapted to the connecting portion 33. When the limiting component 2 abuts against the load-bearing beam 4, the connecting portion 33 can enter the connecting hole 41 and connect with it, so that the stepped surface 34 abuts against the load-bearing beam 4. By tightening the abutting bolt 31, the stepped surface 34 pushes against the load-bearing beam 4, thereby achieving the orientation adjustment of the load-bearing beam 4. Furthermore, by connecting the connecting portion 33 to the connecting hole 41, the connecting portion 33 can also be used to limit the load-bearing beam 4, preventing displacement of the load-bearing beam 4 during operation.

[0022] In some more preferred embodiments, the first limiting plate 21, the second limiting plate 22, and the third limiting plate 23 are all provided with adjusting components 3. That is, by setting adjusting components 3 on three sides of one side of the load-bearing beam 4, when adjusting the position of the load-bearing beam 4, the opposing adjusting components 3 can be loosened first, and then the load-bearing beam 4 can be pushed by the adjusting components 3, so that the longitudinal center line of the load-bearing beam coincides with the center line of the trolley track, and the center line of the stop on the load-bearing beam that mates with the drum bearing seat coincides with the center line of the theoretical length of the drum, thereby achieving the technical effect of meeting assembly requirements and reducing errors.

[0023] The second aspect of this utility model provides a crane, including the adjustable load-bearing beam described in the above-mentioned solution.

[0024] Finally, it should be noted that the embodiments disclosed in this utility model are merely preferred embodiments of this utility model and are only used to illustrate the technical solutions of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. An adjustable load-bearing beam, characterized in that, include: The trolley end beam includes a limiting component on the trolley end beam, an adjusting component on the limiting component, and a load-bearing beam connected to the trolley end beam and abutting against the adjusting component, wherein the adjusting component is adapted to the limiting component for adjusting the orientation of the load-bearing beam. The limiting component includes: a first limiting plate, a second limiting plate, and a third limiting plate, wherein one end of the first limiting plate and the third limiting plate are respectively vertically connected to the same side of the second limiting plate, forming a U-shaped structure that is enclosed on three sides and open on one side. The first limiting plate, the second limiting plate and the third limiting plate are all provided with mounting holes that are compatible with the adjustment component; The adjusting assembly includes: an abutment bolt and a limiting nut adapted to the abutment bolt; The abutment bolt is threadedly connected to the mounting hole, and one end of the abutment bolt abuts against the load-bearing beam. The load-bearing beam is pushed up by adjusting the abutment bolt to adjust the orientation of the load-bearing beam.

2. The adjustable load-bearing beam according to claim 1, characterized in that, The end of the abutting bolt away from the bolt head is also provided with a rod-shaped connecting part.

3. An adjustable load-bearing beam according to claim 2, characterized in that, The diameter of the abutment bolt is larger than the diameter of the connecting part. The connection between the abutting bolt and the connecting part is a stepped surface, and the step surface abuts against the load-bearing beam when the limiting component abuts against the load-bearing beam.

4. An adjustable load-bearing beam according to claim 3, characterized in that, The load-bearing beam is provided with a connecting hole that is adapted to the connecting part. When the limiting component abuts against the load-bearing beam, the connecting part is connected to the connecting hole.

5. An adjustable load-bearing beam according to claim 1, characterized in that, Adjustment components are provided on the first limiting plate, the second limiting plate and the third limiting plate.

6. A crane, characterized in that, Includes the adjustable load-bearing beam according to any one of claims 1-5.

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