Cross beam connecting structure

Abstract

The utility model relates to the technical field of cross beams, in particular to a cross beam connecting structure which comprises a first cross beam and a second cross beam, and the two ends of the first cross beam and the two ends of the second cross beam are in butt joint through first fasteners to form butt joint beams. The number of the butt-joint beams is two, the two butt-joint beams are symmetrically arranged to form a sliding rail, and the hoisting cable penetrates through a gap between the two butt-joint beams. The two ends of the connecting piece in the length direction are connected with the bottoms of the first cross beam and the second cross beam respectively; the width of the cross section of the connecting piece is larger than the height; the connecting piece applies tensile force in the length direction to the first cross beam and the second cross beam. Through the connecting pieces capable of deforming along with bending of the cross beams, the connecting pieces are arranged at the bottoms of the first cross beam and the second cross beam, so that the connecting pieces deform along with bending of the cross beams, stress borne by the connecting pieces is dispersed, the tensile property of the connecting pieces is fully exerted, and the cross beams can bear larger pressure and cannot be broken.

Description

Technical Field

[0001] The utility model relates to the technical field of crossbeams, in particular to a crossbeam connection structure. Background Art

[0002] Beams are an important supporting structure, widely used in the construction industry and various lifting equipment such as cranes and racking systems. Their main function is to carry and distribute the weight from above, ensuring the stability and safety of the structure.

[0003] When designing a beam, support columns are usually placed at both ends to provide the necessary support. However, when the support columns are far apart, the load-bearing capacity of the middle part of the beam may be affected, resulting in insufficient stability when bearing heavy objects.

[0004] In addition, long-span beams are difficult to produce directly, so multiple beams need to be connected together. The stress of the connected beams tends to be concentrated at the connection position, so the connection structure requires reasonable force distribution to avoid beam breakage.

[0005] There is a connecting piece in the prior art, which is a steel plate. The steel plate fits the side wall of the beam to connect the two side beams, forming an effect similar to a reinforcing rib. However, when this type of connecting piece is subjected to force, the stress will be completely concentrated in the connecting piece, causing the connecting piece to easily crack at the stress concentration position, thereby causing the beam to break. Utility Model Content

[0006] In order to solve the above-mentioned problems in the prior art, the present invention provides a beam connection structure, comprising: a first beam and a second beam, wherein both ends of the first beam and the second beam are butted together by a first fastener to form a butted beam;

[0007] There are two docking beams, which are symmetrically arranged to form a slide rail, and the lifting rope passes through the gap between the two docking beams;

[0008] A connecting member, wherein both ends of the connecting member in the length direction are respectively connected to the bottom of the first crossbeam and the bottom of the second crossbeam;

[0009] Wherein, the width of the cross section of the connecting member is greater than the height, and has a bending deformation;

[0010] Wherein, the connecting member applies a tensile force in the length direction to the first beam and the second beam.

[0011] Furthermore, the connection position of the first fastener and the first beam and the second beam forms a first connection point;

[0012] The connection position between the connecting member and the first beam and the second beam forms a second connection point;

[0013] Wherein, the distance in the height direction of the beam is L1; the vertical distance between the first connection point and the second connection point is L2;

[0014] L2>2 / 3×L1.

[0015] Furthermore, the connecting member is configured as a steel plate, and the steel plate is connected to the first crossbeam and the connecting plate is connected to the second crossbeam via a second fastener;

[0016] The surface of the steel plate is parallel to the bottom surface of the first beam, and the axis of the second fastener is parallel to the height direction of the first beam.

[0017] Furthermore, a reinforcement plate is provided at the bottom of the first crossbeam and the second crossbeam, and the plate surface of the reinforcement plate is perpendicular to the butt ends of the two crossbeams;

[0018] The plate surface of the connecting member covers the plate surface of the reinforcing plate, and the reinforcing plate and the connecting plate are connected by the second fastener;

[0019] Wherein, the lengths of the second fasteners to the butt ends of the first beam / second beam are all L3;

[0020] The butt joint end is a plane formed by butt joint between the first beam and the second beam.

[0021] Furthermore, the top surface of the reinforcing plate is welded to the bottom surface of the first crossbeam / the second crossbeam;

[0022] The top surface of the connecting member abuts against the bottom surface of the reinforcing plate, and a space is provided between the connecting member and the bottom surface of the first beam / the second beam;

[0023] Wherein, the lower edges of the butt ends of the first beam / the second beam are both provided with abutment protrusions;

[0024] Wherein, a circular arc abutment block is provided in the interval space;

[0025] Wherein, the abutting protrusion abuts against the upper surface of the arc abutting block, and the lower surface of the arc abutting surface abuts against the upper surface of the connecting member;

[0026] Wherein, the axis of the arc abutment block is parallel to the width direction of the first beam.

[0027] Furthermore, the lower edges of the butt ends of the first crossbeam / the second crossbeam are both provided with abutment protrusions;

[0028] Wherein, the upper surface and the lower surface of the arc abutment block are arc surfaces with equal distance;

[0029] Wherein, the abutting protrusion abuts against the upper surface of the arc abutting block; and the lower surface of the arc abutting block abuts against the connecting piece.

[0030] Furthermore, the connecting member is configured as a plurality of steel cables, and the bottom surface of the first crossbeam and the reinforcing plate are provided with a hinge portion A;

[0031] Both ends of the connecting member have hinged parts B, which are hinged to the hinged parts A;

[0032] The hinge axis is parallel to the width direction of the first beam.

[0033] Furthermore, the steel cable is at a distance L4 from the bottom surface of the beam.

[0034] Furthermore, the butt ends of the first crossbeam and the second crossbeam are both provided with laterally protruding vertical connecting plates, and the vertical connecting plates of the first crossbeam and the second crossbeam are connected by a third fastener;

[0035] Wherein, one side surface of the vertical connecting plate is flush with the butt end.

[0036] The beneficial effect of the present invention is that, by using a connecting piece that can be deformed as the beam bends, the connecting piece is arranged at the bottom of the first beam and the second beam, so that the connecting piece is deformed as the beam bends, the stress on the connecting piece is dispersed, the tensile strength of the connecting piece is fully utilized, and the beam can withstand greater pressure without breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the lifting equipment and beam provided by the utility model;

[0038] Figure 2 This is a front view of the entire lifting equipment and beam provided by the present invention;

[0039] Figure 3 for Figure 1 The enlarged schematic diagram of point a in the middle;

[0040] Figure 4 It is a schematic diagram of the connecting piece structure of the prior art;

[0041] Figure 5 The utility model provides a beam connection structure with an arc abutment block;

[0042] Figure 6 for Figure 5 Front view of the structure;

[0043] Figure 7 The connecting member provided by the present invention is a beam connecting structure in the form of a steel cable;

[0044] Figure 8 for Figure 7 Front view of the structure.

[0045] Reference numerals:

[0046] 0. Docking beam; 01. First crossbeam; 02. Second crossbeam; 03. Docking end; 04. Abutment protrusion; 1. First fastener; 2. Second fastener; 3. Connector; 4. Reinforcement plate; 5. Arc abutment block; 61. Hinge A; 62. Hinge B; 7. Vertical connecting plate; 81. First connection point; 82. Second connection point. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] Example 1

[0049] Reference Figures 1-8

[0050] A beam connection structure, comprising: a first beam 01 and a second beam 02, wherein both ends of the first beam 01 and the second beam 02 are butt-jointed by a first fastener 1, wherein the axis of the first fastener 1 is parallel to the length direction of the first beam 01;

[0051] There are two first crossbeams 01 and two second crossbeams 02 , and the two first crossbeams 01 / second crossbeams 02 are symmetrically arranged to form a slide rail, and the lifting rope passes through the gap between the two first crossbeams 01 / second crossbeams 02 ;

[0052] Connecting member 3, the two ends of the connecting member 3 in the length direction are respectively connected to the bottom of the first crossbeam 01 and the bottom of the second crossbeam 02;

[0053] The width of the cross section of the connecting member 3 is greater than the height, and has a bending deformation;

[0054] The connecting member 3 applies a tensile force in the length direction to the first beam 01 and the second beam 02 .

[0055] Beams are crucial load-bearing structures in lifting equipment, such as overhead cranes and gantry cranes. These two types of equipment are massive, with large beam spans. Therefore, when the overhead hoist, carrying a heavy load, passes through the middle of the beam, the beam with the longest boom is subject to the greatest bending moment, placing a significant strain on its strength. Inadequate beam strength can lead to bending. Overhead cranes are fixed equipment, and their midsection can connect to the roof to mitigate shear forces. Gantry cranes, on the other hand, have enormous beams that resist shear forces through a long vertical reinforcement plate (usually the web of an I-beam). This approach, which relies solely on structural strength to resist shear forces, is typically cast. The heavy beams inevitably lead to excessive weight. Using them in lightweight, mobile gantry cranes can make the equipment unwieldy and difficult to transport. Furthermore, the excessive top weight leads to a high center of gravity, necessitating additional support surfaces at the bottom, which increases the floor space required. Given limited factory floor space, excessively large equipment footprints can reduce the customer base. Therefore, the present application proposes a structural improvement to the crossbeam of a small gantry with a large crossbeam span, transportability, and use in a factory.

[0056] First, the ideal design for the crossbeam of this type of equipment is to use hollow square tubes. Hollow tube crossbeams are much lighter than I-beams and are also more cost-effective. Multiple reinforcement beams are incorporated into the crossbeam to ensure the equipment's bending strength.

[0057] The beam structure is a two-section structure, divided into a first beam 01 and a second beam 02, and the first beam 01 and the second beam 02 are connected by a connecting structure. It should be noted that, for the lifting equipment used in the factory building in this embodiment, support columns cannot be directly set under the beam like building beams and bridges. The first reason is that setting support columns in the middle section will seriously affect the transportation of the equipment (including transportation when the equipment is sold and transportation when used in the factory building); the second reason is that in the use scenario of this equipment, there may be a working platform under the beam (the lifting equipment is used to place heavy objects above the working platform), and the support columns will interfere with the working platform. For beam structures with longer spans, the use of a split beam structure can greatly facilitate the transportation of equipment.

[0058] A beam experiences upward support at both ends and downward force in the middle. Consequently, the beam's internal stress is concentrated at its center. When an object is bent, the length of its neutral layer remains constant. The side closest to the bend, defined by the neutral layer, shortens, while the other side lengthens. When the bend reaches a certain angle, the object will break. This phenomenon is particularly pronounced in butt-jointed beams, where stress is more likely to concentrate at the joint, leading to breakage.

[0059] Based on this, in this application, the first crossbeam 01 and the second crossbeam 02 are connected by a first fastener 1, that is, a bolt connects the first crossbeam 01 and the second crossbeam 02 along the length direction of the crossbeam. A connector 3 is provided, and the two ends of the connector 3 in the length direction are connected by the bottom of the first crossbeam 01 / the second crossbeam 02. The width of the cross section of the connector 3 is greater than the height, making it easier for the connector 3 to bend upward or downward.

[0060] It should be noted that in order to increase the stability of the lifting equipment, the lifting equipment targeted by this application is provided with a sling at the bottom of the lifting equipment, which passes through the gap between the slide rails formed by the crossbeams. Therefore, the complete structure of the crossbeam in this application is composed of a first crossbeam 01 and a second crossbeam 02 connected to form a complete crossbeam, which is then mirrored to the other side. Therefore, in this application, the side wall facing the first crossbeam 01 / second crossbeam 02 is the side away from the gap between the slide rails, and other connecting components are all arranged in pairs.

[0061] When the crane, carrying a heavy load, moves to the docking position, the upper structure of the beam is squeezed and the lower structure is stretched. This increases the distance between the lower edges of the docking ends 03 of the first and second beams 01 and 02, and the ends of the connecting plate are fixedly connected to the lower edges of the docking ends 03 of the first and second beams 01 and 02. At this point, connector 3 is primarily subjected to tension. Conversely, if the connection between these two points (the lower edges of the docking ends 03 of the first and second beams 01 and 02) remains fixed, the beam cannot bend. The connection between these two points is determined by the tensile strength of connector 3 itself.

[0062] It should be made clear that the tension at the two points is not horizontal but inclined, and is tangent to the direction of the bending moment acting on the beam.

[0063] The prior art has a design for a connector 3, which is a steel plate whose surface fits against the side wall of the beam, i.e., it is arranged vertically, with the height of the cross section greater than the width. At this point, the steel plate cannot bend with the beam, so the vertically arranged connector plate is prone to stress concentration, causing cracks at the bottom of the plate. Stress concentration occurs because the steel plate is typically secured with four bolts. The two bolts near the top of the beam move closer to each other due to the deformation of the beam, while the two bolts near the bottom of the beam move away from each other, causing bending moment tearing of the steel plate. The connector plate is prone to cracking at locations where forces from two directions intersect.

[0064] In this embodiment, the width of the cross-section of the connecting member 3 is greater than the height. After the connecting member 3 is subjected to force, the connecting member 3 has an elastic deformation along the direction of force. Therefore, the connecting member 3 can ensure that its own cross-section is always perpendicular to the direction of force compared to the prior art. The stress will be dispersed over the entire cross-section of the connecting member 3, thereby avoiding tearing of the connecting member 3.

[0065] Specifically, in this embodiment, the connecting member 3 is set as a steel plate, and the steel plate is connected to the first crossbeam 01 through the second fastener 2, and the connecting member 3 is connected to the second crossbeam 02;

[0066] The plate surface of the connecting member 3 is parallel to the bottom surface of the first beam 01 , and the axis of the second fastener 2 is perpendicular to the height direction of the plate surface of the connecting member 3 .

[0067] The plate surfaces of the connecting member 3 refer to the two surfaces with the largest areas among the six surfaces of the steel surface.

[0068] For metal parts with plate-like structures, it is easy to bend toward the two plate surfaces, and the larger the cross-section of the same material, the better the tensile strength. The steel plate has both the characteristics of being easy to bend and difficult to stretch, and can be used as the connecting member 3 in this embodiment.

[0069] This embodiment provides a specific form of a connecting member 3, which is configured as a steel plate. The connecting member 3 in the form of a steel plate in this embodiment is the same as the steel plate of the connecting member 3 in the prior art, and the difference lies in the connection method.

[0070] Through holes are provided below the first crossbeam 01 and the second crossbeam 02, through holes are provided at both ends of the connecting member 3, the second fastener 2 is provided as a bolt and nut, the bolt passes through the through holes of the first crossbeam 01 / the second crossbeam 02 and the connecting member 3, the first crossbeam 01 and the second crossbeam 02 are warped to both sides, the through holes of the first crossbeam 01 and the second crossbeam 02 abut against the bolts, causing the angle of the bolts to change, and the bolts abut against the through holes of the connecting member 3 at the same time. At this time, the direction of the pulling force generated on the connecting member 3 is basically perpendicular to the axis of the bolt.

[0071] When the first beam 01 / the second beam 02 is deformed, the lower edge of the butt end 03 of the first beam 01 / the second beam 02 abuts against the upper surface of the connector 3 to provide a downward force, and the connector 3 provides an upward force to bend the connector 3. At this time, the curvature of the connector 3 is basically the same as the force direction of the beam.

[0072] Example 2

[0073] Reference Figure 2

[0074] The connection position between the first fastener 1 and the first crossbeam 01 and the second crossbeam 02 forms a first connection point 81;

[0075] The connection position between the connecting member 3 and the first crossbeam 01 and the second crossbeam 02 forms a second connection point 82;

[0076] The distance in the height direction of the beam is L1; the vertical distance between the first connection point 81 and the second connection point 82 is L2;

[0077] L2>2 / 3×L1.

[0078] The gravity that bends the beam can be regarded as the power that causes the beam to bend around its own width direction. The force is applied at the top of the beam, and the fulcrum of the beam bending is at the top of the beam. Therefore, the farther the connection position between the connecting member 3 and the beam is from the top of the beam, the longer the resistance arm that can be obtained, and the easier it is to prevent the beam from deforming.

[0079] Generally, in the prior art, two or four symmetrical bolts are used to tighten the first beam 01 and the second beam 02. The tighter the first beam 01 and the second beam 02 are, the better, in order to connect the first beam 01 and the second beam 02 into one. However, in this application, it is not desirable to connect the first crossbeam 01 and the second crossbeam 02 as one piece. If the first crossbeam 01 is connected as one piece by multiple first fasteners 1, then when the crossbeam bends, the lower edges of the butt joint 03 of the first crossbeam 01 and the second crossbeam 02 will not be easily separated (for example, if a first fastener 1 is located very close to the lower edge of the crossbeam, forming a first connection point 81, the crossbeam will not be able to directly stretch the bolt during bending, but it is sufficient to bend the bolt. Therefore, a portion of the crossbeam will bend around the first connection point 81, but the overall bending angle of the crossbeam will not change. This location is very close to the bottom of the crossbeam, and the material can bend at a fixed angle. The closer to the axis, the smaller the displacement distance of the lower edges of the first crossbeam 01 and the second crossbeam 02. If the displacement distance is too small, the connector 3 will not be able to perform its function). As a result, the connector 3 will not be able to perform its pulling function, but will bend along with the butt joint 0. Moreover, the provision of multiple first fasteners 1 means that the first crossbeam 01 and the second crossbeam 02 need to have multiple holes, which will correspondingly weaken the strength of the first crossbeam 01 and the second crossbeam 02.

[0080] In this embodiment, the distance in the height direction of the beam is L1; the vertical distance between the first connection point 81 and the second connection point 82 is L2;

[0081] L2>2 / 3×L1.

[0082] The height L1 of the beam is fixed and there is no design space. The second connection point 82 is actually the bottom of the beam, that is, the first connection point 81 must be located at least 2 / 3 of the height of the beam. While playing the role of connecting the first beam 01 and the second beam 02, it ensures that the lower edge of the butt joint 03 of the first beam 01 and the second beam 02 rotates around the first connection point 81, ensuring that the lower edge of the butt joint 03 is sufficiently far from the bending fulcrum, thereby magnifying the displacement distance of the lower edge of the butt joint 03 of the first beam 01 and the lower edge of the butt joint 03 of the second beam 02, so that the connecting part 3 can give full play to the high tensile strength of the material.

[0083] Example 3

[0084] Reference Figure 2 、 Figure 3

[0085] A reinforcing plate 4 is provided at the bottom of the first crossbeam 01 and the second crossbeam 02, and the plate surface of the reinforcing plate 4 is perpendicular to the butt end 03 of the two crossbeams;

[0086] The plate surface of the connecting member 3 covers the plate surface of the reinforcing plate 4, and the reinforcing plate 4 is connected to the connecting plate via the second fastener 2;

[0087] Wherein, the distance between the second fasteners 2 and the butt end 03 in the first beam 01 / second beam 02 is L3;

[0088] The butt joint end 03 is a plane formed by the butt joint between the first beam 01 and the second beam 02 .

[0089] The width of the first beam 01 and the second beam 02 is limited. When the connecting member 3 directly connects the first beam 01 and the second beam 02, the contact area between the connecting member 3 and the second fastener 2 is very small. When the tension on the connecting member 3 is concentrated on this small contact surface, it is very easy to cause the connecting member 3 to be broken, and this is also a great test for the strength of the second fastener 2. Therefore, this embodiment adds a reinforcing plate 4 to extend the width of the first beam 01 and the second beam 02, so that more second fasteners 2 can be set when the connecting member 3 is connected to the first beam 01 / second beam 02 to evenly distribute the force of each part and avoid damage.

[0090] Example 4

[0091] Reference Figure 5 、 Figure 6

[0092] The top surface of the reinforcing plate 4 is welded to the bottom surface of the first crossbeam 01 / the second crossbeam 02;

[0093] The top surface of the connecting member 3 abuts against the bottom surface of the reinforcing plate 4 , and there is a space between the connecting member 3 and the bottom surface of the first crossbeam 01 / the second crossbeam 02 ;

[0094] The lower edges of the butt ends 03 of the first crossbeam 01 and the second crossbeam 02 are both provided with abutment protrusions 04;

[0095] Wherein, a circular arc abutment block 5 is provided in the interval space;

[0096] The abutting protrusion 04 abuts against the upper surface of the arc abutting block 5, and the lower surface of the arc abutting block 5 abuts against the upper surface of the connecting member 3;

[0097] The axis of the arc abutment block 5 is parallel to the width direction of the first beam 01 .

[0098] When the connecting member 3 is in direct contact with the bottom surface of the first beam 01 / the second beam 02, when the first beam 01 and the second beam 02 are tilted, the lower edge of the butt end 03 will abut the top surface of the connecting member 3. The contact surface formed by the abutment between the two is basically a line contact, and the contact surface is extremely small, resulting in the connecting member 3 being subjected to tensile force concentrated on the contact surface, so that the connecting member 3 is easily broken at the above-mentioned contact position.

[0099] Furthermore, the upper portion of the middle section of the connector 3 must have an abutment structure to ensure that the connector 3 is subjected to three-point force. When the lower edge of the butt joint 03 of the first crossbeam 01 / second crossbeam 02 is not in direct contact with the connector 3, the connector 3 plate surface around the second fastener 2 and the plate surface in the middle section of the connector 3 form an angle, causing stress to concentrate at the apex of the angle, causing plastic deformation in the connector 3. Repeated deformation will inevitably lead to metal fatigue fracture in the connector 3 around the second fastener 2.

[0100] In this application, a certain gap is formed between the bottom surface of the first crossbeam 01 / the second crossbeam 02 and the top surface of the connector 3. A circular arc abutting block 5 is provided in the gap. The abutting protrusion 04 abuts the upper surface of the circular arc abutting block 5, and the lower surface of the circular arc abutting block 5 abuts the upper surface of the connector 3. The lower edge of the butt end 03 abuts the upper surface of the circular arc abutting block 5. The circular arc surface of the circular arc abutting block 5 abuts the connector 3, so that the connector 3 fits the arc surface of the circular arc abutting block 5, increasing the contact area and dispersing the stress to avoid fracture.

[0101] Furthermore, the lower edges of the butt ends 03 of the first crossbeam 01 and the second crossbeam 02 are both provided with abutment protrusions 04;

[0102] The upper surface and the lower surface of the arc abutment block 5 are equidistant arc surfaces;

[0103] The abutting protrusion 04 abuts against the upper surface of the arc abutting block 5 ; and the lower surface of the arc abutting block 5 abuts against the connecting member 3 .

[0104] The arc surface of the arc abutting block 5 is an arc with a very large radius. The closer it is to the bending moment of the beam, the better the effect of increasing the abutting area.

[0105] When the lower edge of the beam appears at the bent butt end 03, it actually moves obliquely upward along an arc path, and therefore gradually moves away from the upper surface of the arc abutment block 5. In this application, the upper and lower surfaces of the arc abutment block 5 are both arc surfaces, and are equidistant.

[0106] Example 5

[0107] This embodiment provides another type of connector 3. Connector 3 is configured as multiple steel cables. The cables are characterized by their ease of bending and, due to their processing, possess extremely high tensile strength. The cables are arranged horizontally, with a cross-sectional height equal to the cable diameter and a cross-sectional width equal to the sum of the cable diameters.

[0108] Furthermore, the direction of the force on the steel cable needs to be specially considered. The steel cable cannot be connected to the beam with bolts in the same diameter as the steel plate, and the steel cable is in a straight line after being subjected to force. If the connecting structure at both ends of the steel cable is connected by bolts, the steel cable and the connecting structure at both ends will cause an angle to appear between them, which will generate tangential force on the steel cable and make it easy for the steel cable to break at this point.

[0109] In this embodiment, the bottom surface of the first crossbeam 01 and the reinforcing plate 4 are provided with a hinge portion A61;

[0110] The two ends of the connecting member 3 have hinged portions B62, which are hinged to the hinged portion A61;

[0111] The hinge axis direction is parallel to the width direction of the first beam 01 .

[0112] The connecting member 3 in the form of a steel cable cooperates with the hinge portion B62 to ensure that the connecting member 3 as a whole is in a straight line, so as to fully utilize the high tensile strength of the steel cable.

[0113] Furthermore, the steel cable is at a distance L4 from the bottom surface of the beam.

[0114] After the connecting member 3 is connected to the first beam 01 and the second beam 02 in a hinged form, the connecting member 3 no longer needs to be bent, and the connecting member 3 will always move up and down with the hinge position, so the connecting member 3 is more likely to abut against the lower edge of the docking end 03, causing the connecting member 3 to be cut off by the lower edge of the docking end 03.

[0115] Example 6

[0116] The butt ends 03 of the first crossbeam 01 and the second crossbeam 02 are both provided with a laterally protruding vertical connecting plate 7, and the vertical connecting plates 7 of the first crossbeam 01 and the second crossbeam 02 are connected by a third fastener;

[0117] Wherein, one side surface of the vertical connecting plate 7 is flush with the butt end 03;

[0118] There are multiple third fasteners, and the fastening positions are symmetrically arranged along the middle of the butt end 03 in the vertical direction.

[0119] For the crane used in the crossbeams of this application, the first crossbeam 01 and the second crossbeam 02 are two suspended guide rails. The guide rails are limited in width, making it difficult to arrange multiple fasteners along the width direction of the butt joint 03 when the first crossbeam 01 and the second crossbeam 02 are butted together. This results in the first crossbeam 01 and the second crossbeam 02, which are connected by the first fastener 1, being very susceptible to bending along the width direction after butt joint. If the butt joint beam 0 formed by the first crossbeam 01 and the second crossbeam 02 on one side bends, the two sides of the crossbeam will become non-parallel, thus preventing the crane from moving along the crossbeam, which is equivalent to directly destroying the crossbeam.

[0120] In this embodiment, a laterally protruding vertical connecting plate 7 is provided at the butt ends 03 of the first beam 01 and the second beam 02. One side surface of the vertical connecting plate 7 is flush with the butt ends 03. The width of the butt ends 03 is increased by the vertical connecting plate 7, so that the first beam 01 and the second beam 02 are more easily aligned in the same direction. The vertical connecting plate 7 of the first beam 01 and the second beam 02 are connected by a third fastener. The third fastener and the first fastener 1 respectively fix the two sides of the butt ends 03 in the width direction, and the bending strength of the beam in the width direction is increased by a larger span range in the width direction.

[0121] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inside", "outside", "inner side", "outer side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Among them, "inside" refers to an internal or enclosed area or space. "Periphery" refers to the area surrounding a specific component or specific area.

[0122] In the description of the embodiments of the present invention, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0123] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "install," "connect," "connect," and "assemble" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0124] In the description of the embodiments of the present invention, the term "and / or" is used herein to describe a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " generally indicates that the associated objects are in an "or" relationship.

[0125] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A beam connection structure, characterized in that: include: A first crossbeam and a second crossbeam, wherein both ends of the first crossbeam and the second crossbeam are butted together by a first fastener to form a butted beam; There are two docking beams, which are symmetrically arranged to form a slide rail, and the lifting rope passes through the gap between the two docking beams; A connecting member, wherein both ends of the connecting member in the length direction are respectively connected to the bottom of the first crossbeam and the bottom of the second crossbeam; Wherein, the width of the cross section of the connecting member is greater than the height, and has a bending deformation; Wherein, the connecting member applies a tensile force in the length direction to the first beam and the second beam.

2. A beam connection structure according to claim 1, characterized in that: The connection position between the first fastener and the first beam and the second beam forms a first connection point; The connection position between the connecting member and the first beam and the second beam forms a second connection point; The distance in the height direction of the beam is L1; the vertical distance between the first connection point and the second connection point is L2; L2>2 / 3×L1.

3. The beam connection structure according to claim 2, characterized in that: The connecting member is configured as a steel plate, and the steel plate is connected to the first crossbeam and the connecting plate is connected to the second crossbeam via a second fastener; Wherein, the plate surface of the steel plate is parallel to the bottom surface of the first beam, and the axis of the second fastener is parallel to the height direction of the first beam.

4. The beam connection structure according to claim 3, characterized in that: A reinforcement plate is provided at the bottom of the first crossbeam and the second crossbeam, and the plate surface of the reinforcement plate is perpendicular to the butt ends of the two crossbeams; The plate surface of the connecting member covers the plate surface of the reinforcing plate, and the reinforcing plate and the connecting plate are connected by the second fastener; Wherein, the distance between the second fasteners and the butt end of the first beam / second beam is L3; The butt joint end is a plane formed by butt joint between the first beam and the second beam.

5. The beam connection structure according to claim 4, characterized in that: The top surface of the reinforcing plate is welded to the bottom surface of the first crossbeam / the second crossbeam; The top surface of the connecting member abuts against the bottom surface of the reinforcing plate, and a space is provided between the connecting member and the bottom surface of the first beam / the second beam; Wherein, the lower edges of the butt ends of the first crossbeam / the second crossbeam are both provided with abutment protrusions; Wherein, a circular arc abutment block is provided in the interval space; Wherein, the abutting protrusion abuts against the upper surface of the arc abutting block, and the lower surface of the arc abutting block abuts against the upper surface of the connecting member; Wherein, the axis of the arc abutment block is parallel to the width direction of the first beam.

6. The beam connection structure according to claim 5, characterized in that: The lower edges of the butt ends of the first crossbeam / the second crossbeam are both provided with abutment protrusions; Wherein, the upper surface and the lower surface of the arc abutment block are arc surfaces with equal distance; Wherein, the abutting protrusion abuts against the upper surface of the arc abutting block; and the lower surface of the arc abutting block abuts against the connecting piece.

7. The beam connection structure according to claim 4, characterized in that: The connecting member is configured as a plurality of steel cables, and the bottom surface of the first beam and the reinforcing plate are provided with a hinge portion A; Both ends of the connecting member have hinged parts B, which are hinged to the hinged parts A; The hinge axis is parallel to the width direction of the first beam.

8. The beam connection structure according to claim 7, characterized in that: The steel cable is at a distance L4 from the bottom surface of the beam.

9. The beam connection structure according to claim 8, characterized in that: The butt ends of the first crossbeam and the second crossbeam are both provided with a laterally protruding vertical connecting plate, and the vertical connecting plates of the first crossbeam and the second crossbeam are connected by a third fastener; Wherein, one side surface of the vertical connecting plate is flush with the butt end.

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