Jig frame for modular manufacturing of large-span pipe truss

Abstract

The utility model relates to the related technical field of truss support, in particular to a jig frame for large-span pipe truss modular manufacturing, which comprises a connecting frame and support frames which are arranged at two ends of the connecting frame in a sliding manner and are symmetrically arranged, and further comprises a bearing frame which is vertically arranged along the connecting frame, a reinforcing supporting piece is arranged between the bearing frame and the supporting frame. Reciprocating pushing pieces are symmetrically arranged on the connecting frame, when the two reciprocating pushing pieces push the supporting frame, a lifting assembly installed on the connecting frame controls one end of the reinforcing supporting piece to ascend and descend, and it is ensured that the supporting strength of the reinforcing supporting piece to the supporting frame is stable; by means of synchronous adjustment of the reinforcing supporting piece and the supporting frame, loads can be better dispersed and transmitted, the instability phenomenon caused by stretching and retracting of the supporting frame is avoided, meanwhile, the whole jig frame can adapt to the splicing requirements of trusses of different sizes and shapes, frequent replacement of the jig frame is not needed, and therefore the construction efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of truss support, specifically a jig for modular fabrication of large-span tubular trusses. Background Technology

[0002] Large-span tubular trusses are a type of spatial structure widely used in construction fields such as stadiums, airports, theaters, stations, large factories, and bridges. Their main feature is that they use steel pipes or steel sections connected by nodes to form a lattice structure, which has the advantages of economical material use, light weight, simple construction, and good seismic performance.

[0003] Existing large-span tubular trusses are prone to deformation or displacement during construction due to their large spans and complex structures. While temporary support structures like jigs can effectively fix and support trusses, ensuring their stability during assembly and installation, the support strength of the jig needs to be adjusted when supporting trusses of different spans, making it difficult to guarantee the overall stability of the jig and causing it to easily deform under load. Utility Model Content

[0004] The purpose of this invention is to provide a jig for the modular fabrication of large-span tubular trusses, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A jig for modular fabrication of large-span tubular trusses includes a connecting frame and a support frame slidably disposed at both ends of the connecting frame and symmetrically arranged, and also includes a receiving frame arranged vertically along the connecting frame;

[0007] A reinforcing support is provided between the receiving frame and the supporting frame;

[0008] The connecting frame is symmetrically provided with reciprocating pushers. When the two reciprocating pushers push the support frame, the lifting assembly installed on the connecting frame controls one end of the reinforcing support to rise and fall, ensuring that the reinforcing support provides stable support to the support frame.

[0009] The jig used for modular fabrication of large-span tubular trusses as described above: the connecting frame and the support frame are fixed together by bolts.

[0010] The jig for modular fabrication of large-span tubular trusses as described above: the reciprocating pusher includes two conveyor wheels rotatably mounted on the connecting frame, a conveyor belt connecting the two conveyor wheels, and protruding columns provided on the conveyor belt;

[0011] It also includes a movable plate, one end of which passes through the connecting frame and is fixed to the support frame. A sliding groove is formed on the movable plate for inserting and slidingly connecting protruding columns.

[0012] The jig for modular fabrication of large-span tubular trusses as described above: the lifting assembly includes a lifting rod slidably disposed within the receiving frame, a cylindrical cavity is formed within the lifting rod, and a threaded groove is provided on the inner wall of the cylindrical cavity;

[0013] It also includes an extrusion shaft rotatably mounted on the connecting frame, one end of which is inserted into the cylindrical cavity, and a ball bearing adapted to the threaded groove is movably disposed on the extrusion shaft.

[0014] The jig for modular fabrication of large-span tubular trusses as described above: the reinforcing support includes a telescopic reinforcing rod, one end of which is hinged to the support frame and the other end of which is hinged to the lifting rod, and a movable seat is slidably provided on the telescopic reinforcing rod;

[0015] It also includes a stabilizing rod, one end of which is hinged to the connecting frame and the other end of which is hinged to the movable seat.

[0016] The jig for modular fabrication of large-span tubular trusses as described above: the rotation of the extrusion shaft and the two conveying wheels is controlled by a drive assembly mounted on the connecting frame.

[0017] The jig for modular fabrication of large-span tubular trusses as described above: the drive assembly includes a drive shaft rotatably mounted on the connecting frame, the drive shaft being connected to the extrusion shaft via a bevel gear set, and the drive shaft being connected to one of the conveyor wheels via a first belt;

[0018] It also includes a drive shaft rotatably mounted on the connecting frame, the drive shaft being connected to another of the conveyor wheels via a gear set, and the drive shaft being connected to the drive shaft via a second belt.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By driving two sets of reciprocating pushers to work synchronously, the support frames at both ends of the connecting frame simultaneously extend and retract relative to the connecting frame. This allows the jig to quickly and flexibly handle large-span truss structures. Furthermore, one end of the reinforcing support shifts with the extension and retraction of the connecting frame. Driven by the lifting components, the support length of the reinforcing support changes with the extension and retraction of the support frame. Through the synchronous adjustment of the reinforcing support and the support frame, the load can be better distributed and transferred, avoiding instability caused by the extension and retraction of the support frame. This ensures the structural safety and reliability of the entire jig. At the same time, the jig as a whole can adapt to the assembly requirements of trusses of different sizes and shapes, eliminating the need for frequent jig replacements and significantly improving construction efficiency. Attached Figure Description

[0021] Figure 1 This is a structural diagram of a jig used for modular fabrication of large-span tubular trusses.

[0022] Figure 2 This is a structural diagram of the connecting frame and reinforcing support in the jig used for modular fabrication of large-span tubular trusses.

[0023] Figure 3 This is a structural diagram of the lifting assembly in the jig used for modular fabrication of large-span tubular trusses.

[0024] Figure 4 This is a structural schematic diagram of the extrusion shaft in a jig used for modular fabrication of large-span tubular trusses.

[0025] Figure 5 This is a structural diagram of the connecting frame and support frame in the jig used for modular fabrication of large-span tubular trusses.

[0026] Figure 6 This is a structural diagram of the connecting frame and reciprocating pusher in the jig used for modular fabrication of large-span tubular trusses.

[0027] Figure 7 This is a structural diagram of the reciprocating pusher and extrusion shaft in a jig used for modular fabrication of large-span tubular trusses.

[0028] In the diagram: 1. Connecting frame; 2. Support frame; 3. Receiving frame; 4. Lifting rod; 5. Reinforcing rod; 6. Stabilizing rod; 7. Moving seat; 8. Extrusion shaft; 801. Ball bearing; 9. Conveyor wheel; 10. Conveyor belt; 1001. Protruding column; 11. Movable plate; 1101. Slide groove; 12. Drive shaft; 13. Bevel gear set; 14. First belt; 15. Second belt; 16. Transmission shaft; 17. Gear set. Detailed Implementation

[0029] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0030] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0031] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0032] Please see Figures 1 to 7 In this embodiment of the utility model, a jig for modular fabrication of large-span tubular trusses includes a connecting frame 1 and a support frame 2 slidably disposed at both ends of the connecting frame 1 and symmetrically arranged, and also includes a receiving frame 3 arranged vertically along the connecting frame 1.

[0033] A reinforcing support is provided between the receiving frame 3 and the support frame 2;

[0034] The connecting frame 1 is symmetrically provided with reciprocating pushers. When the two reciprocating pushers push the support frame 2, the lifting assembly installed on the connecting frame 1 controls one end of the reinforcing support to rise and fall, so as to ensure that the reinforcing support provides stable support to the support frame 2.

[0035] In this embodiment, when the large-span tubular truss needs support and the support length needs adjustment, the two sets of reciprocating pushers are driven to work synchronously, so that the support frames 2 at both ends of the connecting frame 1 extend and retract relative to the connecting frame 1 at the same time. At this time, one end of the reinforcing support is offset with the extension and retraction of the connecting frame 1. Under the drive of the lifting component, the support length of the reinforcing support changes with the extension and retraction of the connecting frame 1. By adjusting the reinforcing support and the connecting frame 1 synchronously, the load can be better distributed and transferred, avoiding instability caused by the extension and retraction of the connecting frame 1, thereby ensuring the structural safety and reliability of the entire jig. At the same time, the jig as a whole can adapt to the assembly requirements of trusses of different sizes and shapes, without the need for frequent jig replacement, thereby greatly improving construction efficiency.

[0036] In one embodiment, the connecting frame 1 and the support frame 2 are fixed together by bolts.

[0037] During truss installation, the relative positions between support frame 2 and connecting frame 1 need to be precisely adjusted to meet construction requirements. Although reciprocating pushers can achieve rapid adjustment, this method is usually temporary and cannot provide sufficient structural stability. Therefore, after adjustment, fixing connecting frame 1 and support frame 2 together with bolts can effectively improve the overall structural stability and prevent displacement or deformation caused by external loads or construction operations.

[0038] As a further embodiment of this utility model, the reciprocating pusher includes two conveyor wheels 9 rotatably mounted on the connecting frame 1, a conveyor belt 10 connected between the two conveyor wheels 9, and a protrusion 1001 provided on the conveyor belt 10;

[0039] It also includes a movable plate 11, one end of which passes through the connecting frame 1 and is fixed to the support frame 2. A sliding groove 1101 is formed on the movable plate 11 for inserting and slidingly connecting the protruding post 1001.

[0040] The use of conveyor pulleys 9 and conveyor belts 10 for control and adjustment effectively adapts to the needs of large-span adjustments. The belt drive system boasts high strength, durability, and stability, ensuring optimal operation across varying spans. Furthermore, the design of the conveyor pulleys 9 allows for tension adjustment as needed, guaranteeing smooth operation of the conveyor belts 10. This design enables the jig to flexibly handle truss structures of different spans, improving construction efficiency and expanding its applicability.

[0041] As a further embodiment of this utility model, the lifting assembly includes a lifting rod 4 slidably disposed within the receiving frame 3, a cylindrical cavity is formed within the lifting rod 4, and a threaded groove is provided on the inner wall of the cylindrical cavity;

[0042] It also includes an extrusion shaft 8 rotatably mounted on the connecting frame 1, one end of the extrusion shaft 8 being inserted into the cylindrical cavity, and a ball bearing 801 adapted to the threaded groove being movably disposed on the extrusion shaft 8.

[0043] The reinforcing support includes a telescopic reinforcing rod 5, one end of which is hinged to the support frame 2 and the other end is hinged to the lifting rod 4. A movable seat 7 is slidably disposed on the telescopic reinforcing rod 5.

[0044] It also includes a stabilizing rod 6, one end of which is hinged to the connecting frame 1 and the other end of which is hinged to the movable seat 7.

[0045] Specifically, when the support frame 2 moves relative to the connecting frame 1, it causes one end of the telescopic reinforcing rod 5 to shift synchronously. At this time, the extrusion shaft 8 rotates synchronously with the rotation of the conveyor wheel 9. The balls 801 on the extrusion shaft 8 extrude pressure on the threaded groove, causing the lifting rod 4 to move relative to the receiving frame 3 under the pressure of the balls 801. Simultaneously, it causes the other end of the telescopic reinforcing rod 5 to shift. At this time, the support strength of the telescopic reinforcing rod 5 changes, ensuring that the support of the telescopic reinforcing rod 5 on the support frame 2 remains stable when the extension length of the support frame 2 relative to the connecting frame 1 increases. Moreover, the moving seat 7 slides relative to the telescopic reinforcing rod 5, causing the stabilizing rod 6 to shift, thereby effectively adjusting the stress state of the telescopic reinforcing rod 5 and making the stress more uniform. This helps to reduce local stress concentration and improve the stability and safety of the overall structure.

[0046] As a further embodiment of this invention, the rotation of the extrusion shaft 8 and the two conveying wheels 9 is controlled by a drive assembly mounted on the connecting frame 1.

[0047] The drive assembly includes a drive shaft 12 rotatably mounted on the connecting frame 1. The drive shaft 12 is connected to the extrusion shaft 8 via a bevel gear set 13, and the drive shaft 12 is connected to one of the conveying wheels 9 via a first belt 14.

[0048] It also includes a drive shaft 16 rotatably mounted on the connecting frame 1, the drive shaft 16 being connected to another conveyor wheel 9 via a gear set 17, and the drive shaft 12 being connected to the drive shaft 16 via a second belt 15.

[0049] It should be noted that: a motor is installed on the connecting frame 1, and the output shaft of the motor is fixed to the drive shaft 12. The specific control method of the motor adopts existing technology, and this utility model will not provide further explanation.

[0050] When the aforementioned drive shaft 12 rotates, it drives the extrusion shaft 8 to rotate synchronously under the transmission of the bevel gear set 17. At this time, under the transmission of the first belt 14 and the second belt 15, it drives one of the conveyor wheels 9 and the drive shaft 16 to rotate synchronously. When the drive shaft 16 rotates, it drives the other conveyor wheel 9 to rotate under the transmission of the gear set 17, so as to realize that the two symmetrically arranged conveyor wheels 9 rotate synchronously, thereby making the support frames 2 at both ends move relative to the connecting frame 1 at the same time, and the direction of movement is opposite.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A jig for modular fabrication of large-span tubular trusses, comprising a connecting frame (1) and a support frame (2) slidably disposed at both ends of the connecting frame (1) and symmetrically arranged, and further comprising a receiving frame (3) arranged vertically along the connecting frame (1), characterized in that; A reinforcing support is provided between the receiving frame (3) and the support frame (2); The connecting frame (1) is symmetrically provided with reciprocating pushers. When the two reciprocating pushers push the support frame (2), the lifting assembly installed on the connecting frame (1) controls one end of the reinforcing support to rise and fall, so as to ensure that the reinforcing support provides stable support to the support frame (2).

2. The jig for modular fabrication of long-span tube truss according to claim 1, wherein, The connecting frame (1) and the support frame (2) are fixed together by bolts.

3. The jig for modular fabrication of long-span tube truss according to claim 1, wherein, The reciprocating pusher includes two conveyor wheels (9) rotatably mounted on the connecting frame (1), and a conveyor belt (10) is connected between the two conveyor wheels (9). A protruding post (1001) is provided on the conveyor belt (10). It also includes a movable plate (11), one end of which passes through the connecting frame (1) and is fixed to the support frame (2). A groove (1101) is formed on the movable plate (11) for inserting and slidingly connecting the protruding post (1001).

4. The jig for modular fabrication of long-span tube trusses according to claim 3, characterized in that, The lifting assembly includes a lifting rod (4) that is slidably disposed in the receiving frame (3), and a cylindrical cavity is formed in the lifting rod (4), and a threaded groove is provided on the inner wall of the cylindrical cavity; It also includes an extrusion shaft (8) rotatably mounted on the connecting frame (1), one end of the extrusion shaft (8) being inserted into the cylindrical cavity, and a ball (801) adapted to the threaded groove is movably disposed on the extrusion shaft (8).

5. The jig for modular fabrication of long-span tube trusses according to claim 4, characterized in that, The reinforcing support includes a telescopic reinforcing rod (5), one end of which is hinged to the support frame (2) and the other end is hinged to the lifting rod (4). A movable seat (7) is slidably provided on the telescopic reinforcing rod (5). It also includes a stabilizing rod (6), one end of which is hinged to the connecting frame (1) and the other end of which is hinged to the movable seat (7).

6. The jig for modular fabrication of long-span tube trusses according to claim 4, characterized in that, The rotation of the extrusion shaft (8) and the two conveying wheels (9) is controlled by a drive assembly mounted on the connecting frame (1).

7. The jig for modular fabrication of long-span tube trusses according to claim 6, characterized in that, The drive assembly includes a drive shaft (12) rotatably mounted on the connecting frame (1), the drive shaft (12) being connected to the extrusion shaft (8) via a bevel gear set (13), and the drive shaft (12) being connected to one of the conveyor wheels (9) via a first belt (14); It also includes a drive shaft (16) rotatably mounted on the connecting frame (1), the drive shaft (16) being connected to another conveyor wheel (9) via a gear set (17), and the drive shaft (12) being connected to the drive shaft (16) via a second belt (15).

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