Conical track supporting framework

Abstract

The invention provides a conical track supporting framework, which relates to the field of traffic transportation infrastructure, and comprises a conical main framework formed by splicing a plurality of modularized three-dimensional truss units and an auxiliary inner framework arranged in the main framework, and the auxiliary inner framework is transmitted to node balls through a track mounting support. The node balls distribute loads to the rod pieces through the connecting bases on the surfaces of the node balls, the elastic damping assemblies in the connecting bases absorb impact energy in the process, then the loads are transmitted through a dual-framework system composed of the modular three-dimensional truss units and the inner framework, and the dual-framework system and the modular three-dimensional truss units form a space grid structure through the shared node balls. When the structure vibrates, the tuned mass damper is started to work, the mass block of the tuned mass damper reciprocates in the protective shell, vibration energy is consumed through the spring element and the viscous fluid damper, and effective transmission of loads and active control of vibration are achieved through cooperative work of all the parts of the whole system.

Description

Technical Field

[0001] This invention relates to the field of transportation infrastructure, and more particularly to a tapered track support frame. Background Technology

[0002] Conical track support frames typically employ a single-layer spatial truss structure, with members welded or bolted together via gusset plates to form a conical support. This structure relies primarily on the external main frame to bear the entire load; its members often feature uniform cross-sections, and the nodes are rigidly connected. The track is directly fixed to the frame nodes using simple mounting supports. The entire system lacks an effective vibration control mechanism and is a relatively simple spatial support structure.

[0003] However, existing tapered track support frames suffer from limited stability due to their single-layer structure. They are prone to torsional deformation under asymmetrical loads and lack an effective internal support system to improve stress distribution. Secondly, the rigid connection method at the nodes leads to severe stress concentration, making them susceptible to fatigue cracks under long-term cyclic loading, thus affecting the structure's service life. Furthermore, the lack of a dedicated vibration control system fails to effectively suppress resonance caused by track vehicle operation, posing safety hazards. In addition, the limited adjustability of the track mounting supports hinders precise track position control, affecting track flatness. These problems restrict the application of tapered track support frames in large-scale projects and urgently require solutions through technological innovation. Summary of the Invention

[0004] The purpose of this invention is to provide a conical track support frame that solves the problems of limited stability of single-layer frame structures, rigid connection of nodes, and lack of a dedicated vibration control system in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a conical track support frame, comprising a conical main frame assembled from multiple modular three-dimensional truss units, and an auxiliary inner frame disposed inside the main frame, wherein the inner frame is connected to the main frame at multiple nodes to form a multi-stable spatial structure.

[0006] The modular three-dimensional truss unit has a tuned mass damper installed in its internal cavity. The tuned mass damper is fixed to the rods or node plates inside the unit by a special mounting bracket.

[0007] Preferably, the modular three-dimensional truss units are connected by adaptive universal joints; the joint is a node ball, which is a spherical hollow casting with multiple connecting seats on its surface. The connecting seats are equipped with elastic damping components, and the ends of the members are fastened to the connecting seats by bidirectional tension and compression screws to compress the elastic damping components.

[0008] Preferably, the elastic damping component is composed of a disc spring or a high-performance rubber washer.

[0009] Preferably, the connecting seat is a boss structure with a neck and has precision threads machined inside.

[0010] Preferably, the dedicated mounting bracket is a rigid metal frame structure, which is fixedly connected to the rods or node plates inside the unit by high-strength bolts.

[0011] Preferably, the tuned mass damper comprises a mass block, a spring element, and a viscous fluid damper, the natural frequency of which is tuned to match the main vibration frequency of the skeleton.

[0012] Preferably, the modular three-dimensional truss unit is a tetrahedral or pyramidal geometrically invariant.

[0013] Preferably, it also includes a track mounting bracket, which includes a base plate, a track pressure plate, and a lateral support plate;

[0014] The track pressure plate has an inverted L-shaped structure, and its horizontal bottom has an elongated hole;

[0015] The track plate is connected to the base plate through a connector that passes through the elongated hole, allowing the track plate to move along the direction of the elongated hole. This allows for adjustment of its relative position with the lateral support plate before tightening, thereby achieving precise clamping and fixing of the track beam.

[0016] Preferably, the lateral support plates are distributed on both sides of the track pressure plate to improve the stability of the track connection.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The node-based connection system provides comprehensive connectivity, enabling members from different directions to achieve optimal connection angles and ensuring the optimal force transmission path. The elastic damping component establishes a rigid connection and flexible force transmission mechanism at the node joints, ensuring connection reliability while significantly improving the fatigue resistance of the nodes by absorbing impact energy. The dual-frame design, through the coordinated work of the main frame and inner frame, forms a frame-within-a-frame structure, greatly improving overall stability and torsional stiffness, effectively resisting various complex loads. The tuned mass damper, through the coordinated work of the mass block, spring element, and viscous fluid damper, provides precise vibration suppression for specific resonant frequencies, effectively improving the dynamic performance of the structure. The track mounting bracket, with its elongated hole design, allows for precise fine-tuning of the track position, and, in conjunction with the inverted L-shaped track pressure plate and lateral support plate, ensures the accuracy and reliability of the track connection. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall front view of the product of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall side view structure of the product of the present invention;

[0021] Figure 3 This is a schematic diagram of the track mounting support structure for the product of the present invention;

[0022] Figure 4 This is a front view schematic diagram of the track mounting support structure of the product of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection structure between the connector and the node ball in the product of the present invention;

[0024] Figure 6 This is a schematic diagram of the base plate structure of the product of the present invention;

[0025] Figure 7 This is a schematic diagram of the tuned mass damper structure of the product of this invention.

[0026] In the diagram: 1. Modular three-dimensional truss unit; 2. Internal frame; 3. Member; 31. Connector; 32. Elastic damping assembly; 4. Node ball; 5. Tuned mass damper; 51. Special mounting bracket; 52. Mass block; 53. Spring element; 54. Viscous fluid damper; 55. Protective shell; 6. Track mounting support; 61. Base plate; 62. Track pressure plate; 63. Support plate; 64. Oblong hole. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention relates to a tapered track support frame, the core innovation of which lies in upgrading the traditional single-layer support structure into an intelligent frame-within-a-frame system. This system achieves unprecedented stability and adaptability through modular design, intelligent connection, and integrated vibration reduction, such as... Figure 1-7 As shown, it includes the outermost modular three-dimensional truss unit 1, which is nested inside the auxiliary inner frame 2. The two are connected to each other through shared node spheres 4 to form a tightly coupled spatial grid system. Each tetrahedral unit is a complete load-bearing unit, which can evenly distribute the load from all directions, just like building blocks. Through different combinations, it can form conical structures of various sizes, which greatly improves the design flexibility and construction convenience.

[0029] Among them, the modular three-dimensional truss unit 1 serves as the basic building block of the system, arranged in a honeycomb pattern in space. The unit at the bottom of the conical structure has the largest volume, and the unit size gradually decreases as the height increases, forming a smoothly transitioning conical outer contour. The spatial orientation of each unit has been optimized to ensure that the load is transferred to the foundation along the optimal path.

[0030] Furthermore, the node ball 4, as the core connecting hub of the system, is located at the spatial intersection of any three or more members 3;

[0031] Among them, the connecting seat 31 is evenly distributed on the spherical outer surface of the node ball 4. Its spherical surface provides a comprehensive arrangement basis for the connecting seat 31, and undertakes the crucial connection and force transmission functions. Its spherical design allows the rods 3 from different directions to find the optimal connection angle. The rods 3 are connected to the connecting seat 31 through the bidirectional tension and compression screws at the ends.

[0032] Among them, the elastic damping component 32 inside the connecting seat 31 is like the cartilage of a joint, absorbing impact energy while transmitting load, and protecting the entire structure from vibration fatigue damage.

[0033] The elastic damping component 32 can be selected as a disc spring assembly or a high-performance rubber washer. When selected as a disc spring assembly, it provides nonlinear stiffness characteristics, maintains high stiffness under normal load, and absorbs energy through deformation under impact load; it has good fatigue resistance and is suitable for long-term cyclic load applications and heavy-load, high-frequency vibration environments; when selected as a high-performance rubber washer, it provides continuous elastic support and can effectively filter high-frequency vibration; it has self-recovery characteristics and can quickly return to its original shape after deformation, making it suitable for applications with high requirements for vibration reduction and noise reduction, especially in environments with significant low-frequency vibration; in this embodiment, a high-performance rubber washer is preferred.

[0034] Furthermore, the main frame and the inner frame 2 form an organic whole. The main frame acts like an exoskeleton, directly bearing external loads; the inner frame 2 acts like an endoskeleton, providing additional support from within. The two are tightly connected through shared node spheres 4, forming a spatial grid structure. When the main frame deforms, the inner frame 2 immediately provides counter-support; when the structure is torsional, the inner and outer frames restrain each other, greatly improving torsional stiffness. This collaborative working mechanism enables the entire system to effectively resist various complex loads.

[0035] Furthermore, the tuned mass damper 5 is an integrated vibration reduction system, including a dedicated mounting bracket 51, a mass block 52, a spring element 53, a viscous fluid damper 54, and a protective housing 55.

[0036] The protective housing 55 serves as the main structure of the tuned mass damper 5. The protective housing 55 is a sealed cuboid container that provides a mounting base and protection for the internal components, forming a sealed space to contain the damping medium. The inner walls on both sides provide fixed support for the spring elements 53.

[0037] The mass block 52 is disposed inside the protective housing 55 and can reciprocate along the inner wall of the housing;

[0038] Spring elements 53 are symmetrically arranged on both sides of the mass block 52 and connected to the inner side of the protective shell 55;

[0039] The viscous fluid damper 54 is fixed at one end near the mass block 52;

[0040] A special mounting bracket 51 is welded and fixed above the protective shell 55, and its top end is connected to the main structure.

[0041] Furthermore, the track mounting bracket 6 is a key connecting component for fixing the track beam 7 to the tapered support frame. The track mounting bracket 6 is composed of a base plate 61, a track pressure plate 62, and a lateral support plate 63.

[0042] The base plate 61 is located at the bottom of the support, serving as the base of the entire support. Its bottom is machined with a spherical groove that matches the outer contour of the node ball 4, and it is fixedly connected to the node ball by continuous welding around the entire circumference, forming a stable support foundation;

[0043] Lateral support plates 63 are fixed to both sides of the track pressure plate 62 to provide support for the stability of the track connection;

[0044] The track pressure plate 62 has an inverted L-shaped structure and is fixedly connected to the base plate 61 by bolts. An elongated hole 64 is opened at the horizontal bottom of the track pressure plate 62.

[0045] In practical use: the load is transferred to the node ball 4 via the track mounting support 6. The node ball 4 distributes the load to each member 3 through the connecting seat 31 on its surface. The elastic damping component 32 in the connecting seat 31 absorbs the impact energy during this process. The load is then transferred through the double skeleton system composed of the modular three-dimensional truss unit 1 and the inner skeleton 2. The two form a spatial grid structure by sharing the node ball 4, which works together to resist deformation and torsion. When the structure vibrates, the tuned mass damper 5 starts to work. Its mass block 52 reciprocates within the protective shell 55, and the vibration energy is consumed by the spring element 53 and the viscous fluid damper 54. The entire system achieves effective load transfer and active vibration control through the coordinated work of each component.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conical track support frame, characterized in that: It includes a conical main frame assembled from multiple modular three-dimensional truss units (1), and an auxiliary inner frame (2) set inside the main frame. The inner frame (2) is connected to the main frame at multiple nodes to form a multi-stable spatial structure. The modular three-dimensional truss unit (1) has a tuned mass damper (5) installed in its internal cavity. The tuned mass damper (5) is fixed to the rod or node plate inside the unit by a special mounting bracket (51).

2. The conical track support frame according to claim 1, characterized in that: The modular three-dimensional truss units (1) are connected by adaptive universal connection nodes; the node is a node ball (4), which is a spherical hollow casting with multiple connecting seats (31) on its surface. The connecting seat (31) is provided with an elastic damping component (32). The end of the rod (3) is fastened to the connecting seat (31) by a bidirectional tension and compression screw and compresses the elastic damping component (32).

3. The conical track support frame according to claim 2, characterized in that: The elastic damping component (32) is composed of a disc spring or a high-performance rubber washer.

4. The conical track support frame according to claim 2, characterized in that: The connecting seat (31) is a boss structure with a neck and has precision threads machined inside.

5. The conical track support frame according to claim 1, characterized in that: The dedicated mounting bracket (51) is a rigid metal frame structure, which is fixedly connected to the rods or node plates inside the unit by high-strength bolts.

6. The conical track support frame according to claim 1, characterized in that: The tuned mass damper (5) comprises a mass block (52), a spring element (53), and a viscous fluid damper (54), the natural frequency of which is tuned to match the main vibration frequency of the skeleton.

7. The conical track support frame according to claim 1, characterized in that: The modular three-dimensional truss unit (1) is a tetrahedral or pyramidal geometric invariant.

8. The conical track support frame according to claim 1, characterized in that: It also includes a track mounting bracket (6), which includes a base plate (61), a track pressure plate (62), and a lateral support plate (63). The track pressure plate (62) has an inverted L-shaped structure and an elongated hole (64) at its horizontal bottom. The track plate (62) is connected to the base plate (61) through a connector passing through the elongated hole (64), so that the track plate (62) can move along the direction of the elongated hole to adjust its relative position with the side support plate (63) before fastening, thereby achieving precise clamping and fixing of the track beam.

9. The conical track support frame according to claim 8, characterized in that: The lateral support plates (63) are distributed on both sides of the track pressure plate (62) to improve the stability of the track connection.

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