Trolley door frame

Abstract

The present invention relates to the technical field of tunnel construction, and in particular to a trolley portal frame, comprising a crossbeam assembly, a longitudinal beam assembly and a column assembly; the column assembly comprises a column body and a connecting seat assembly, the connecting seat assembly is located on the upper end surface of the column body, and the connecting seat assembly is provided with a first matching piece and a second matching piece; the crossbeam assembly is provided with a third matching piece, and the third matching piece is connected with the first matching piece in a matching manner; the longitudinal beam assembly overlaps the upper end surface of the column body, and the longitudinal beam assembly is provided with a fourth matching piece, and the fourth matching piece is connected with the second matching piece in a matching manner. The matching error between the crossbeam assembly and the column assembly in this solution is independent of the matching error between the longitudinal beam assembly and the column assembly. Therefore, the verticality requirements of the three in this solution can be achieved through lower processing accuracy and matching accuracy, thereby reducing the process requirements.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to a trolley portal frame. Background Art

[0002] The existing tunnel lining trolley is composed of formwork, gantry, bracket, transverse mechanism, jacking mechanism, traveling mechanism, supporting jack, ladder platform, hydraulic and electrical systems, etc. The gantry is an indispensable component of the tunnel lining trolley and is the structural foundation of the tunnel lining trolley. It not only bears the walking and displacement of the formwork, bracket and other structures of the tunnel lining trolley, but also bears part of the concrete pouring pressure. The entire gantry needs to have sufficient strength, rigidity and stability.

[0003] The existing tunnel construction trolley gantry is mainly divided into two structural forms. One is a traditional gantry consisting of two longitudinal beams, more than three gantry cross beams and gantry columns connected to the upper surfaces of the longitudinal beams. The other is a four-legged gantry structure formed by two cross beams, two longitudinal beams and columns connected to the bottom of the cross beams. The cross beams are connected to the sides of the longitudinal beams, and the columns are connected to the bottom of the cross beams. The connection accuracy between them is high, and the verticality of the connection between the cross beams and the columns, and the verticality of the connection between the longitudinal beams and the cross beams must be ensured at the same time. The processing is complicated and the cost is high. In addition, the verticality between the beams of the gantry must also be ensured during installation, and the installation is complicated. Summary of the invention

[0004] The object of the present invention is to provide a trolley portal frame, which can achieve the verticality requirement among the columns, the cross beams and the longitudinal beams through relatively low processing accuracy and matching accuracy.

[0005] On the one hand, the trolley portal frame provided by the present invention includes a crossbeam assembly, a longitudinal beam assembly and a column assembly;

[0006] The column assembly comprises a column body and a connecting seat assembly, wherein the connecting seat assembly is located on the upper end surface of the column body, and a first matching piece and a second matching piece are provided on the connecting seat assembly;

[0007] The crossbeam assembly is provided with a third matching piece, and the third matching piece is matched and connected with the first matching piece;

[0008] The longitudinal beam assembly is overlapped with the upper end surface of the column body, and a fourth matching piece is provided on the longitudinal beam assembly, and the fourth matching piece is matched and connected with the second matching piece.

[0009] Furthermore, the first matching piece is located on the upper end surface of the connecting seat assembly, and the second matching piece is located on the side end surface of the connecting seat assembly.

[0010] Furthermore, the upper end surface of the connecting seat assembly includes an upper connecting plate, the first mating component includes a first connecting hole located on the upper connecting plate, the side end surface of the connecting seat assembly close to the longitudinal beam assembly includes a side connecting plate, the second mating component includes a second connecting hole located on the side connecting plate, and the upper connecting plate and the side connecting plate are matingly connected.

[0011] Furthermore, the crossbeam assembly includes a crossbeam web and a crossbeam lower flange plate, the crossbeam web is cooperatively connected with the crossbeam lower flange plate, the width of the crossbeam lower flange plate along the horizontal direction is greater than the spacing between the two side end surfaces of the crossbeam web along the horizontal direction, and the third mating part includes a third connecting hole located on the crossbeam lower flange plate.

[0012] Furthermore, the longitudinal beam assembly includes a longitudinal beam web and a longitudinal beam side flange plate, the longitudinal beam web and the longitudinal beam side flange plates are matched and connected, the width of the longitudinal beam side flange plates in the horizontal direction is greater than the spacing between the two side end surfaces of the longitudinal beam web in the horizontal direction, and the fourth matching part includes a fourth connecting hole located on the longitudinal beam side flange plate.

[0013] Furthermore, the connecting seat assembly includes a connecting seat web, the upper end of the connecting seat web is cooperatively connected to the upper connecting plate, and the side end of the connecting seat web is cooperatively connected to the side connecting plate.

[0014] Furthermore, the upper end surface of the column body is provided with a column upper flange plate, the longitudinal beam assembly includes a longitudinal beam lower flange plate, the column upper flange plate and the longitudinal beam lower flange plate are fitted together, the longitudinal beam lower flange plate is provided with a fifth connecting hole, the column upper flange plate is provided with a sixth connecting hole, and the fifth connecting hole and the sixth connecting hole are connected by bolts.

[0015] Furthermore, the column assembly includes a guide column, the column body and the guide column are slidably connected, and a lifting device for adjusting the height is provided between the column body and the guide column.

[0016] Furthermore, a matching device is provided between the crossbeam assembly and the longitudinal beam assembly, and the matching device includes a first ear plate and a second ear plate, the first ear plate is matched and connected with the crossbeam assembly, the second ear plate is matched and connected with the longitudinal beam assembly, the first ear plate is provided with a first hinge hole, the second ear plate is provided with a second hinge hole, and the first hinge hole and the second hinge hole are rotatably connected via a rotating shaft.

[0017] Furthermore, at least one of the first hinge hole and the second hinge hole is a round hole.

[0018] Beneficial effects:

[0019] The trolley gantry provided by the present invention has a first mating piece and a second mating piece that both belong to a connecting seat assembly, and the connecting piece assembly cooperates with other necessary structures to form a column assembly. Therefore, the connecting piece assembly can be processed separately, so as to control the position and angle between the first mating piece and the second mating piece, so as to achieve the assembly accuracy and verticality requirements. During the assembly process, this scheme uses the first mating piece to lift the crossbeam assembly, and at the same time uses the upper end face of the column body to lift the longitudinal beam assembly. The crossbeam assembly is placed on the first mating piece, and the first mating piece simultaneously positions and supports the crossbeam assembly. The longitudinal beam assembly is placed on the upper end face of the column body, and at the same time contacts with the second mating piece, is positioned by the second mating piece, and is lifted by the upper end face of the column body. Compared with the series matching method in which the crossbeam is connected to the side of the longitudinal beam and the column is connected to the bottom of the crossbeam in the traditional trolley gantry, the crossbeam assembly and the longitudinal beam assembly in this scheme are respectively connected to the corresponding matching parts on the column assembly through their own matching parts. The crossbeam assembly and the longitudinal beam assembly in this scheme are in parallel matching mode. Compared with the traditional series matching method, the matching error between the crossbeam and the longitudinal beam may be superimposed on the matching error between the crossbeam and the column, which will eventually lead to obvious matching error between the longitudinal beam and the column, thereby failing to meet the verticality requirement between the longitudinal beam and the column. Therefore, higher processing accuracy and matching accuracy are required. The matching error between the crossbeam assembly and the column assembly in this scheme is independent of the matching error between the longitudinal beam assembly and the column assembly. At the same time, through the lifting effect of the upper end face of the column body and the connecting seat assembly, the structure of the connecting seat assembly is simplified, and the processing accuracy between the first matching part and the second matching part is improved. Therefore, the verticality requirements of the three in this scheme can be achieved through lower processing accuracy and matching accuracy, thereby reducing the process requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a trolley gantry provided in an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a partial structure of a trolley gantry provided in an embodiment of the present invention;

[0023] Figure 3 A schematic structural diagram of a connecting seat assembly of a trolley gantry provided by an embodiment of the present invention;

[0024] Figure 4A schematic diagram of the assembly structure of a trolley gantry provided in an embodiment of the present invention.

[0025] Icons: 1-column assembly; 2-longitudinal beam assembly; 3-cross beam assembly; 4-cross beam web; 5-cross beam lower flange plate; 6-column body; 7-triangular bracket; 8-longitudinal beam lower flange plate; 9-longitudinal beam web; 10-connecting seat assembly; 11-column upper flange plate; 12-side connecting plate; 13-connecting seat web; 14-longitudinal beam side flange plate; 15-upper connecting plate; 16-first ear plate; 17-rotating shaft; 18-second ear plate; 19-right angle structure. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] according to Figures 1 to 4 The trolley gantry shown includes a crossbeam assembly, a longitudinal beam assembly and a column assembly;

[0029] The column assembly 1 includes a column body 6 and a connecting seat assembly 10. The connecting seat assembly 10 is located on the upper end surface of the column body 6. The connecting seat assembly 10 is provided with a first matching piece and a second matching piece.

[0030] A third matching piece is provided on the crossbeam assembly 3, and the third matching piece is matched and connected with the first matching piece;

[0031] The longitudinal beam assembly 2 is overlapped with the upper end surface of the column body 6. A fourth matching piece is provided on the longitudinal beam assembly 2, and the fourth matching piece is matched and connected with the second matching piece.

[0032] The existing tunnel construction trolley gantry is mainly divided into two structural forms. One is a traditional gantry consisting of two longitudinal beams, more than three gantry cross beams and gantry columns connected to the upper surfaces of the longitudinal beams. The other is a four-legged gantry structure formed by two cross beams, two longitudinal beams and columns connected to the bottom of the cross beams. The cross beams are connected to the sides of the longitudinal beams, and the columns are connected to the bottom of the cross beams. The connection accuracy between them is high, and the verticality of the connection between the cross beams and the columns, and the verticality of the connection between the longitudinal beams and the cross beams must be ensured at the same time. The processing is complicated and the cost is high. In addition, the verticality between the beams of the gantry must also be ensured during installation, and the installation is complicated.

[0033] The column assembly 1 of the present scheme includes a connecting seat assembly 10, which is simultaneously connected to the crossbeam assembly 3 and the longitudinal beam assembly 2, wherein the first matching piece on the connecting seat assembly 10 is connected to the third matching piece on the crossbeam assembly 3, and the second matching piece on the connecting seat assembly 10 is connected to the fourth matching piece on the longitudinal beam assembly 2.

[0034] The position and angle between the first fitting and the second fitting can affect the position and angle of the connected third fitting and the fourth fitting, and further affect the position and angle relationship between the crossbeam assembly 3 corresponding to the third fitting, the longitudinal beam assembly 2 corresponding to the fourth fitting, and the column assembly 1, including accuracy and verticality. Since the first fitting and the second fitting belong to the same connector assembly 10, and the connector assembly cooperates with other necessary structures to form the column assembly 1, the connector assembly can be processed separately to control the position and angle between the first fitting and the second fitting to achieve the assembly accuracy and verticality requirements. The function of the upper end face of the column is to support the longitudinal beam assembly 2, which is overlapped on the upper end face of the column. Through the support of the column, the longitudinal beam assembly 2 can be subjected to an upward supporting force, which offsets part or all of the gravity of the longitudinal beam assembly. During the assembly process, assembly errors may occur between the first mating part and the third mating part, and assembly errors may occur between the second mating part and the third mating part. Compared with the series matching method in which the crossbeam in the traditional trolley gantry is connected to the side of the longitudinal beam and the column is connected to the bottom of the crossbeam, the crossbeam assembly 3 and the longitudinal beam assembly 2 in this scheme are respectively connected to the corresponding mating parts on the column assembly 1 through their own matching parts. The crossbeam assembly 3 and the longitudinal beam assembly 2 in this scheme are in parallel matching. Compared with the traditional series matching method, the matching error between the crossbeam and the longitudinal beam may be superimposed on the matching error between the crossbeam and the column, which eventually leads to obvious matching error between the longitudinal beam and the column, thereby failing to meet the verticality requirement between the longitudinal beam and the column. Therefore, higher processing accuracy and matching accuracy are required. The matching error between the crossbeam assembly 3 and the column assembly 1 in this scheme is independent of the matching error between the longitudinal beam assembly 2 and the column assembly 1. Therefore, the verticality requirements of the three in this scheme can be achieved through lower processing accuracy and matching accuracy, thereby reducing the process requirements.

[0035] Since the crossbeams, longitudinal beams and columns in the traditional trolley gantry can be stacked on each other and support the remaining components through their respective upper ends, a connecting seat assembly 10 is provided at the upper end of the column body 6 in the present scheme, and the crossbeam assembly 3 and the longitudinal beam assembly 2 respectively cooperate with the connecting seat assembly 10 to achieve the positioning effect. At the same time, the crossbeam assembly 3 and the longitudinal beam assembly 2 need to be lifted to achieve their fixation on the upper end of the column assembly 1. In order to avoid the processing difficulty between the first matching part and the second matching part caused by the complex structure of the connecting seat assembly 10 affecting the processing accuracy between the two, the present scheme uses the first matching part to lift the crossbeam assembly 3, and uses the upper end face of the column body 6 to lift the longitudinal beam assembly 2. The crossbeam assembly 3 is placed on the first matching part, and the first matching part simultaneously positions and supports the crossbeam assembly 3. The longitudinal beam assembly 2 is placed on the upper end face of the column body 6 and contacts with the second matching part at the same time. It is positioned by the second matching part and lifted by the upper end face of the column body 6.

[0036] In an optional embodiment, the first mating piece is located on the upper end surface of the connecting seat assembly 10 , and the second mating piece is located on the side end surface of the connecting seat assembly 10 .

[0037] The first matching piece and the second matching piece are perpendicular to each other, so as to ensure the verticality between the third matching piece and the fourth matching piece.

[0038] In an optional embodiment, the upper end surface of the connecting seat assembly 10 includes an upper connecting plate 15, the first mating part includes a first connecting hole located on the upper connecting plate 15, the side end surface of the connecting seat assembly 10 close to the longitudinal beam assembly 2 includes a side connecting plate 12, the second mating part includes a second connecting hole located on the side connecting plate 12, and the upper connecting plate 15 and the side connecting plate 12 are matingly connected.

[0039] A plurality of first connecting holes are provided on the upper connecting plate 15, and each first connecting hole corresponds to a third connecting hole on the lower flange plate 5 of the beam. During the assembly process of the beam assembly 3 and the connecting seat assembly 10, the upper connecting plate 15 is fitted with the lower flange plate 5 of the beam, and the position and angle coordination between the upper connecting plate 15 and the lower flange plate 5 of the beam are utilized to achieve the verticality requirement between the beam assembly 3, the connecting seat assembly 10 and the column assembly 1, and then the first connecting hole and the third connecting hole are used to engage the bolts for fixing, thereby achieving a fixed connection between the column assembly 1 and the beam assembly 3.

[0040] In an optional embodiment, the crossbeam assembly 3 includes a crossbeam web 4 and a crossbeam lower flange plate 5, the crossbeam web 4 is cooperatively connected with the crossbeam lower flange plate 5, the width of the crossbeam lower flange plate 5 along the horizontal direction is greater than the width of the horizontal spacing between the two side end surfaces of the crossbeam web 4, and the third matching part includes a third connecting hole located on the crossbeam lower flange plate 5.

[0041] The cross beam web 4 is composed of a plurality of plates arranged at intervals in the horizontal direction, and there is a gap between adjacent plates. Its function is to reduce the self-weight of the structure while increasing the connection area with the cross beam lower flange plate 5 to increase the connection strength between the two. The cross beam lower flange plate 5 protrudes from the end faces of the cross beam web 4 on both sides in the horizontal direction, and the structural rigidity of the cross beam assembly 3 in the horizontal direction is ensured by a large width. In order to reduce the self-weight of the structure, the cross beam lower flange plate 5 is a plate-like structure, so the cross beam web 4 is used to ensure the structural rigidity of the cross beam assembly 3 perpendicular to the horizontal direction. The portion of the cross beam lower flange plate 5 protruding from the end faces of the cross beam web 4 on both sides is provided with a plurality of third connection holes to facilitate the connection of the connection bolts.

[0042] Preferably, the crossbeam assembly 3 in this embodiment also includes an upper crossbeam flange plate, which is cooperatively connected to the upper end surface of the crossbeam web 4, and a lower crossbeam flange plate 5 is cooperatively connected to the lower end surface of the crossbeam web 4, and the three cooperate to form an I-shaped structure.

[0043] In an optional embodiment, the longitudinal beam assembly 2 includes a longitudinal beam web 9 and a longitudinal beam side flange plate 14, which are matched and connected, and the width of the longitudinal beam side flange plate 14 along the horizontal direction is greater than the width of the horizontal spacing between the two side end surfaces of the longitudinal beam web 9 along the horizontal direction, and the fourth matching part includes a fourth connecting hole located on the longitudinal beam side flange plate 14.

[0044] The function of the longitudinal beam side flange plate 14 is to provide a processing surface for a plurality of fourth connection holes. The longitudinal beam web 9 is composed of a plurality of plates arranged at intervals in the horizontal direction. There is a gap between adjacent plates. Its function is to reduce the deadweight of the structure while increasing the connection area with the longitudinal beam side flange plate 14 to increase the connection strength between the two. Since the two side ends of the longitudinal beam web 9 close to the connection seat assembly 10 are the ends of each plate, the cross-sectional size is small and the connection holes cannot be opened, the present solution sets a longitudinal beam side flange plate 14 at each of the two side ends of the longitudinal beam web 9. The longitudinal beam side flange plate 14 protrudes from the two side end faces of the longitudinal beam web 9 in the horizontal direction. The fourth connection holes are set on the part of the longitudinal beam side flange plate 14 protruding from the two side end faces of the longitudinal beam web 9 to facilitate the connection of the connection bolts.

[0045] In an optional embodiment, the connecting seat assembly 10 includes a connecting seat web 13 , the upper end of the connecting seat web 13 is cooperatively connected to the upper connecting plate 15 , and the side end of the connecting seat web 13 is cooperatively connected to the side connecting plate 12 .

[0046] Preferably, the connecting seat assembly 10 in the present embodiment includes two side connecting plates 12, an upper connecting plate 15, and a lower connecting plate. The side connecting plates 12 are respectively located at the two side ends of the connecting seat web 13, and the upper connecting plate 15 and the lower connecting plate are located at the upper and lower ends of the connecting seat web 13. In the present embodiment, the four connecting plates are connected and enclosed to form a rectangular frame structure. The verticality between the upper connecting plate 15 and the side connecting plate 12 is ensured by the rectangular frame structure. The connecting seat web 13 is located in the rectangular frame structure, which plays a structural reinforcement role for the rectangular frame structure to avoid distortion under external force due to the instability of the rectangle.

[0047] In this solution, each connecting plate and the connecting seat web 13 are welded or integrally cast.

[0048] In an optional embodiment, the upper end surface of the main body of the column assembly 1 includes a column upper flange plate 11, and the longitudinal beam assembly 2 includes a longitudinal beam lower flange plate 8, and the column upper flange plate 11 and the longitudinal beam lower flange plate 8 are fitted together.

[0049] The function of the upper flange plate 11 of the column is to support the longitudinal beam assembly 2. The longitudinal beam assembly 2 is overlapped on the upper flange plate 11 of the column. The lower flange plate 8 of the longitudinal beam is in contact with the upper flange plate 11 of the column. Through the support of the upper flange plate 11 of the column, the longitudinal beam assembly 2 can be subjected to an upward supporting force, which offsets part or all of the gravity of the longitudinal beam assembly 2, thereby preventing the bolts between the second connecting hole and the fourth connecting hole from being subjected to the force of the longitudinal beam side flange plate 14 and generating shear stress, thereby preventing the bolts from breaking.

[0050] In an optional implementation, a fifth connection hole is provided on the lower flange plate 8 of the longitudinal beam, and a sixth connection hole is provided on the upper flange plate 11 of the column, and the fifth connection hole and the sixth connection hole are connected by bolts.

[0051] A plurality of fifth connection holes are provided on the longitudinal beam lower flange plate 8, and each fifth connection hole corresponds to a sixth connection hole on the column upper flange plate 11. During the assembly process of the longitudinal beam assembly 2 and the column assembly 1, the longitudinal beam lower flange plate 8 is fitted with the column upper flange plate 11, and then fixed by bolts engaged between the fifth connection holes and the sixth connection holes, thereby realizing a fixed connection between the longitudinal beam assembly 2 and the column assembly 1.

[0052] In an optional embodiment, the upper flange plate 11 of the column is in a horizontal state.

[0053] The horizontal state means that the upper flange plate 11 of the column can offset the entire gravity of the longitudinal beam assembly 2. When the upper flange plate 11 of the column is at an angle, the gravity of the longitudinal beam assembly 2 can be decomposed into a downward sliding component along the board surface and a pressure on the board surface. The downward sliding component can be offset by the friction between the upper flange plate 11 of the column and the longitudinal beam assembly 2.

[0054] In an optional embodiment, the column assembly 1 includes a guide column, a column body 6 is slidably connected to the guide column, and a lifting device for adjusting the height is provided between the column body 6 and the guide column.

[0055] Preferably, the lifting device is a lifting cylinder and a pin shaft for fixing.

[0056] The column body 6 is sleeved outside the guide column, and a lifting cylinder is arranged in the telescopic cavity of the column body 6, which can extend and retract the column body 6 and the guide column within the travel range. The lower end of the guide column contacts the working surface, and the upper end of the column body 6 is connected with the connecting seat assembly 10 and the column upper flange plate 11, thereby supporting the crossbeam assembly 3 and the longitudinal beam assembly 2.

[0057] Preferably, the column body 6 is welded to the connecting seat assembly 10, and the column body 6 is welded to the column upper flange plate 11. At the same time, a triangular bracket 7 is welded to the side end of the column, and one right-angled side of the triangular bracket 7 fits with the side end of the column, and the other right-angled side is welded to the column upper flange plate 11, thereby avoiding bending of the column upper flange plate 11. The arrangement of the triangular bracket 7 reduces the material consumption of the column body 6 while ensuring sufficient fitting surface between the longitudinal beam lower flange plate 8 and the column upper flange plate 11, thereby reducing the cost.

[0058] In an optional embodiment, a matching device is provided between the cross beam assembly 3 and the longitudinal beam assembly 2, and the matching device includes a first ear plate 16 and a second ear plate 18. The first ear plate 16 is matched and connected to the cross beam assembly 3, and the second ear plate 18 is matched and connected to the longitudinal beam assembly 2. The first ear plate 16 is provided with a first hinge hole, and the second ear plate 18 is provided with a second hinge hole. The first hinge hole and the second hinge hole are rotatably connected through a rotating shaft 17.

[0059] In an optional embodiment, at least one of the first hinge hole and the second hinge hole is a round hole.

[0060] Preferably, the first hinge hole is a waist-shaped hole.

[0061] During the assembly process, first fix the crossbeam assembly 3 and the connecting seat assembly 10. At this time, the column body 6 is in a prone state, and the first ear plate 16 on the crossbeam assembly 3 faces the ground. The longitudinal beam assembly 2 is placed close to the crossbeam assembly 3, and the longitudinal beam assembly 2 is placed on the ground. The second hinge hole on the second ear plate 18 is aligned with the first hinge hole on the first ear plate 16. The hinge between the first ear plate 16 and the second ear plate 18 is completed by inserting the rotating shaft 17 into the second hinge hole and the first hinge hole. The rotating shaft can slide in the first hinge hole, i.e., the waist hole. At this time, the upper flange plate 11 of the column is opposite to the longitudinal beam side flange plate 14 of the longitudinal beam assembly 2. In actual use, the number of column bodies 6 is four, and the number of crossbeam assemblies 3 and longitudinal beam assemblies 2 are two respectively. The two ends of the longitudinal beam assembly 2 are respectively connected to the crossbeam assembly 3 on the ground by hinged manner as shown in FIG. Figure 4 As shown, the two longitudinal beam assemblies 2 are lifted in parallel by a crane, and the suspended combined cross beam assembly 3 and the column body 6 are automatically in a drooping vertical state under the action of gravity. The waist round hole on the ear plate is set to prevent the longitudinal beam assembly 2 from interfering with the overall drooping movement of the combined cross beam assembly 3 and the column body 6; the specific process is that the column body 6 gradually becomes perpendicular to the ground during the erection process, the first ear plate 16 changes its angle with the cross beam assembly 3, the longitudinal beam assembly 2 is rotationally connected to the cross beam assembly 3, and the longitudinal beam assembly 2 maintains a high degree of parallelism relative to the ground under the action of gravity. The specific parallelism depends on the erection synchronization of the column bodies 6 at both ends. At this time, the upper flange plate 11 of the column is equivalent to rotating around the rotation axis 17, and gradually becomes opposite to the lower flange plate 8 of the longitudinal beam during the rotation process. In the process of the longitudinal beam assembly 2 contacting the upper flange plate 11 of the column, the lower flange plate 8 of the longitudinal beam assembly 2 and the longitudinal beam side flange There is a right-angle transition between the edge plate 14, and the right-angle structure 19 is against the upper flange plate 11 of the column. At this time, the distance between the rotation axis 17 and the upper flange plate 11 of the column is equivalent to the distance between the rotation axis 17 and the vertex of the right-angle structure 19, which is equivalent to the hypotenuse length of the right triangle. At this time, the rotation axis 17 is located in the middle section of the first hinge hole. As the angle between the lower flange plate 8 of the longitudinal beam and the upper flange plate 11 of the column decreases, the lower flange plate 8 of the longitudinal beam and the upper flange plate 11 of the column gradually fit together. , the distance between the rotating shaft 17 and the upper flange plate 11 of the column gradually becomes equal to the distance between the rotating shaft 17 and the lower flange plate 8 of the longitudinal beam, which is equivalent to the length of the right angle side of the right triangle. The length of the right angle side is less than the length of the hypotenuse. Therefore, the rotating shaft 17 gradually approaches one end of the first hinge hole. When the column body 6 is completely in a vertical state, the lower flange plate 8 of the longitudinal beam fits with the upper flange plate 11 of the column, and the side flange plate 14 of the longitudinal beam fits with the side connecting plate 12, completing the lifting and positioning of the longitudinal beam assembly 2. After the assembled cross beam assembly 3 and the column body 6 are in a drooping vertical state, the two longitudinal beam assemblies 2 are lowered by a crane until the lower end of the vertically drooping column body 6 lands steadily, and then the corresponding connection holes are connected and fixed with bolts to complete the fixed connection of the gantry, which reduces the high-altitude operation time of the gantry installation, making it safer, more convenient and quicker.

[0062] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0064] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A trolley gantry, characterized in that: It includes a crossbeam assembly, a longitudinal beam assembly and a column assembly; The column assembly (1) comprises a column body (6) and a connecting seat assembly (10); the connecting seat assembly (10) is located on the upper end surface of the column body (6); and a first matching piece and a second matching piece are provided on the connecting seat assembly (10); The crossbeam assembly (3) is provided with a third matching piece, and the third matching piece is matched and connected with the first matching piece; The longitudinal beam assembly (2) is overlapped with the upper end surface of the column body (6), and a fourth matching piece is provided on the longitudinal beam assembly (2), and the fourth matching piece is matched and connected with the second matching piece; The upper end surface of the connecting seat assembly (10) includes an upper connecting plate (15), the first matching component includes a first connecting hole located on the upper connecting plate (15), the side end surface of the connecting seat assembly (10) close to the longitudinal beam assembly (2) includes a side connecting plate (12), the second matching component includes a second connecting hole located on the side connecting plate (12), and the upper connecting plate (15) and the side connecting plate (12) are matched and connected.

2. The trolley gantry according to claim 1, characterized in that: The first matching piece is located on the upper end surface of the connecting seat assembly (10), and the second matching piece is located on the side end surface of the connecting seat assembly (10).

3. The trolley gantry according to claim 1, characterized in that: The crossbeam assembly (3) includes a crossbeam web (4) and a crossbeam lower flange plate (5), the crossbeam web (4) is connected to the crossbeam lower flange plate (5), the width of the crossbeam lower flange plate (5) in the horizontal direction is greater than the spacing between the two side end surfaces of the crossbeam web (4) in the horizontal direction, and the third matching part includes a third connecting hole located on the crossbeam lower flange plate (5).

4. The trolley gantry according to claim 1, characterized in that: The longitudinal beam assembly (2) comprises a longitudinal beam web (9) and a longitudinal beam side flange plate (14), wherein the longitudinal beam web (9) and the longitudinal beam side flange plate (14) are matched and connected, wherein the width of the longitudinal beam side flange plate (14) in the horizontal direction is greater than the spacing between the two side end surfaces of the longitudinal beam web (9) in the horizontal direction, and the fourth matching component comprises a fourth connecting hole located on the longitudinal beam side flange plate (14).

5. The trolley gantry according to claim 1, characterized in that: The connecting seat assembly (10) comprises a connecting seat web (13), the upper end of the connecting seat web (13) is cooperatively connected to the upper connecting plate (15), and the side end of the connecting seat web (13) is cooperatively connected to the side connecting plate (12).

6. The trolley gantry according to claim 1, characterized in that: The upper end surface of the column body is provided with a column upper flange plate (11), the longitudinal beam assembly (2) comprises a longitudinal beam lower flange plate (8), the column upper flange plate (11) and the longitudinal beam lower flange plate (8) are fitted together, The lower flange plate (8) of the longitudinal beam is provided with a fifth connection hole, and the upper flange plate (11) of the column is provided with a sixth connection hole, and the fifth connection hole and the sixth connection hole are connected by bolts.

7. The trolley gantry according to claim 1, characterized in that: The column assembly (1) comprises a guide column, the column body (6) is slidably connected to the guide column, and a lifting device for adjusting the height is provided between the column body (6) and the guide column.

8. The trolley gantry according to claim 1, characterized in that: A matching device is provided between the cross beam assembly (3) and the longitudinal beam assembly (2), and the matching device comprises a first ear plate (16) and a second ear plate (18); the first ear plate (16) is matched and connected with the cross beam assembly (3), and the second ear plate (18) is matched and connected with the longitudinal beam assembly (2); a first hinge hole is provided on the first ear plate (16), and a second hinge hole is provided on the second ear plate (18); the first hinge hole and the second hinge hole are rotationally connected via a rotating shaft (17).

9. The trolley gantry according to claim 8, characterized in that: At least one of the first hinge hole and the second hinge hole is a round hole.

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