A highly flexible vehicle-mounted interaction system and device for large cylindrical equipment

Abstract

A highly flexible vehicle-mounted interaction system and device for large cylindrical equipment belongs to the field of vehicle-mounted vibration reduction technology. Its features include: a disc spring-supported vibration isolation unit, a negative stiffness energy dissipation enhancement unit, a rotating eddy current damping unit, and a support pad unit; the disc spring-supported vibration isolation unit and the negative stiffness energy dissipation enhancement unit are fixed to the transport vehicle body and connected to the support pad unit; several negative stiffness energy dissipation enhancement units are fixedly arranged around the aforementioned disc spring-supported vibration isolation unit; the rotating eddy current damping unit is installed inside the aforementioned disc spring-supported vibration isolation unit. Based on the disc spring and negative stiffness mechanism, a highly flexible vibration isolation layer under dynamic load can be obtained while providing sufficient vertical bearing capacity, achieving a good vertical vibration isolation effect. It can effectively isolate the vertical vibration of large cylindrical equipment during long-distance highway transportation and efficiently dissipate the vibration input energy beam, and has good application value.

Description

Technical Field

[0001] This invention belongs to the field of vehicle-mounted shock absorption technology, and particularly relates to a highly flexible vehicle-mounted interaction system and device for large cylindrical equipment. Background Technology

[0002] Large cylindrical equipment inevitably suffers from prolonged exposure to random road vibration loads and occasional road pulse loads during long-distance transportation. This can cause minor damage to the internal components of the equipment, potentially leading to structural damage and functional failure. Therefore, it is essential to further explore methods to improve the vibration safety and reliability of large cylindrical equipment under random road vibration loads and occasional road pulse loads during long-distance transportation, mitigating the potential adverse effects of long-term transportation vibrations or occasional vibrations on these equipment.

[0003] However, existing vibration isolation devices for transporting cylindrical equipment mainly use flexible materials (such as rubber pads and laminated rubber bearings) and disc springs to provide low vertical vibration isolation stiffness to isolate vibrations. This fails to resolve the contradiction between high-performance vibration isolation and high load-bearing capacity during the transport of large cylindrical equipment. To address this issue, researchers have proposed a series of quasi-zero stiffness devices to accommodate independent design of static and dynamic stiffness. However, the working deformation range of these devices is insufficient to accommodate the large vertical deformation vibrations of large cylindrical equipment during long-distance transport, and they cannot provide effective acceleration control to ensure the functional stability of large cylindrical equipment. There is an urgent need to develop new devices to ensure the structural safety and reliability of large cylindrical equipment during long-distance road transport and storage. Summary of the Invention

[0004] The present invention aims to solve the above problems and provides a highly flexible vehicle-mounted interaction system and device for large cylindrical equipment that can significantly reduce the effects of random road vibration loads and the dynamic response of large cylindrical equipment under the action of accidental road pulse loads during long-distance transportation.

[0005] The large cylindrical equipment highly flexible vehicle-mounted interaction system and device of the present invention includes a disc spring support vibration isolation unit, a negative stiffness energy dissipation efficiency enhancement unit, a rotating eddy current damping unit and a support pad unit;

[0006] The disc spring-supported vibration isolation unit and the negative stiffness energy dissipation enhancement unit are fixed to the transport vehicle body by high-strength bolts or welding. The support pad unit is fixed to the disc spring-supported vibration isolation unit to support the large cylindrical equipment. Several negative stiffness energy dissipation enhancement units are fixedly arranged around the aforementioned disc spring-supported vibration isolation unit. The rotating eddy current damping unit is installed inside the disc spring-supported vibration isolation unit and fixed to it by high-strength bolts to deform in tandem. Under the vibration environment of long-distance transportation of large cylindrical equipment, this system can effectively isolate the vertical vibration of the structure under random road surface vibration loads and accidental road surface pulse loads, improving the safety and reliability of long-distance highway transportation of large cylindrical equipment.

[0007] Furthermore, the large cylindrical equipment high-flexibility vehicle-mounted interaction system and device of the present invention includes a negative stiffness energy-saving efficiency enhancement unit comprising a lower support, a preload spring, a pivot rod, a vertical rod, an upper support, an additional damping, an additional spring, a top connecting plate, a bottom connecting member, and an upper connecting member.

[0008] The preload spring provides preload by setting a preload value, thereby promoting the deformation movement of the negative stiffness mechanism. The two ends of the preload spring are connected to the lower support and the pivot rod, respectively; the pivot rod is hinged to the vertical rod and the lower support, and the vertical rod is hinged to the upper support and the pivot rod; the additional damping and additional spring are connected to the upper support via an upper connector; the negative stiffness energy-saving enhancement unit is connected to the aforementioned support pad unit via a top connecting plate using high-strength bolts or welding.

[0009] Furthermore, in the large cylindrical equipment high-flexibility vehicle-mounted interaction system and device of the present invention, the disc spring support vibration isolation unit includes a support pad and a disc spring. The support pad and the disc spring are connected by welding. The number and stacking form (layered, stacked, or combined stacked, etc.) of the disc springs can be designed and selected according to the weight of the equipment to be supported. The bottom of the disc spring is connected to the transport vehicle body by high-strength bolts or welding, and the top of the disc spring is connected to the support pad unit by bolts. The negative stiffness energy dissipation efficiency enhancement unit is arranged symmetrically around the disc spring and connected in parallel with the disc spring support vibration isolation unit.

[0010] Under external transport vibration loads, the negative stiffness effect can further reduce the stiffness of the isolation layer, thereby improving its vibration isolation capacity. Simultaneously, the negative stiffness amplification mechanism of the negative stiffness energy dissipation enhancement unit can amplify the deformation of the additional damping, dissipating more vibration input energy under the same isolation layer displacement, effectively enhancing the isolation capacity of the isolation layer. For transport loads of different weights, calculations and analysis can be performed to easily add or remove some disc springs and negative stiffness units to adapt to different transport vibration isolation effects.

[0011] Furthermore, in the large cylindrical equipment highly flexible vehicle-mounted interaction system and device of the present invention, the rotating eddy current damping unit is installed in the middle of the aforementioned disc spring-supported vibration isolation unit, and the two can deform together. The rotating eddy current damping unit includes an upper connecting plate, a threaded screw, a permanent magnet outer cylinder, a threaded slotted inner cylinder, and a bottom connecting plate. The threaded screw is placed inside the threaded slotted inner cylinder. When the vibration isolation layer deforms, the threaded screw can rotate within the threaded slotted inner cylinder through the thread and cut the magnetic field lines generated by the permanent magnet outer cylinder, further assisting the vibration isolation layer in dissipating vibration input energy and generating eddy current / inertial capacitance effects, thereby improving the vibration isolation effect of the vibration isolation layer.

[0012] Furthermore, in the large cylindrical equipment highly flexible vehicle-mounted interaction system and device of the present invention, the top of the support pad unit is configured as a curved preload beam; the lower part of the preload beam is provided with fastening bolts; the support pad unit can use the fastening bolts to adjust its support curvature according to the size of the cylindrical equipment to be transported, so as to adapt to cylindrical equipment of different sizes.

[0013] Furthermore, in the large cylindrical equipment high-flexibility vehicle-mounted interaction system and device of the present invention, the support pad at the bottom of the disc spring-supported vibration isolation unit and the lower bracket of the negative stiffness energy dissipation efficiency enhancement unit, and the support pad at the top of the disc spring-supported vibration isolation unit and the top connecting plate of the negative stiffness energy dissipation efficiency enhancement unit are integrally processed and formed, which can ensure that the entire installation unit is more robust and reliable.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] 1. This invention establishes a highly flexible vehicle-mounted interaction system and device for large cylindrical equipment. Based on disc springs and negative stiffness mechanisms, it can obtain a highly flexible vibration isolation layer under dynamic load while providing sufficient vertical bearing capacity, thus achieving a better vertical vibration isolation effect. At the same time, it dissipates more vibration input energy under the same vibration isolation layer displacement, thereby improving the vertical vibration isolation capability of the vibration isolation system.

[0016] 2. In this invention, an eddy current damping device is installed in the middle of a disc spring vibration isolation device. It can deform in conjunction with the disc spring. During the deformation process, the eddy current effect generated by the threaded screw cutting the magnetic field lines further dissipates the vibration input energy. At the same time, the eddy current / inertial capacitance effect formed can specifically control the acceleration response of the cylindrical equipment being transported, further improving the vertical vibration isolation effect of the isolation layer.

[0017] 3. The support pad unit of the present invention can adjust the curvature of the support surface through the preload beam and fastening bolts, which can be adapted to large cylindrical transport equipment of different sizes and dimensions, and improve the safety and reliability of long-distance transportation.

[0018] 4. This invention can be parametrically designed and modularly constructed and assembled according to the required load. It can effectively isolate the vertical vibration of large cylindrical equipment during long-distance highway transportation and efficiently dissipate the vibration input energy beam, which has good potential for widespread application. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the application scenario of the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment described in an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the rotating eddy current damping unit structure of the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the support pad unit structure of the high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention;

[0024] Among them, 1-support pad, 2-disc spring, 3-transport vehicle, 4-support pad unit, 5-lower bracket, 6-preload spring, 7-pivot rod, 8-vertical rod, 9-upper bracket, 10-additional damping, 11-additional spring, 12-top connecting plate, 13-bottom connecting piece, 14-upper connecting piece, 15-upper connecting plate, 16-threaded screw, 17-permanent magnet outer cylinder, 18-threaded slotted inner cylinder, 19-bottom connecting plate, 20-fastening bolt, 21-preload beam. Detailed Implementation

[0025] The following detailed description of the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment according to the present invention, with reference to the accompanying drawings and embodiments, is not intended to limit the present invention.

[0026] This embodiment discloses a highly flexible vehicle-mounted interaction system and device for large cylindrical equipment, such as... Figure 1 As shown, a highly flexible vehicle-mounted interaction system and device for large cylindrical equipment is installed between the transport vehicle and the large cylindrical equipment, serving as a vertical vibration isolation mechanism. Figure 1 , Figure 2As shown, it includes a disc spring-supported vibration isolation unit, a negative stiffness energy dissipation enhancement unit, a rotating eddy current damping unit, and a support pad unit 4; the disc spring-supported vibration isolation unit and the negative stiffness energy dissipation enhancement unit are fixed to the transport vehicle 3 and connected to the support pad unit 4; the negative stiffness energy dissipation enhancement unit is fixedly arranged around the aforementioned disc spring-supported vibration isolation unit; the rotating eddy current damping unit is installed inside the aforementioned disc spring-supported vibration isolation unit.

[0027] In the embodiments disclosed herein, such as Figure 2 As shown, the negative stiffness energy dissipation efficiency enhancement unit includes a lower support 5, a preload spring 6, a pivot rod 7, a vertical rod 8, an upper support 9, an additional damper 10, an additional spring 11, a top connecting plate 12, a bottom connecting piece 13, and an upper connecting piece 14. The preload spring 6 provides preload by setting a preload value, promoting the deformation movement of the negative stiffness mechanism. The two ends of the preload spring 6 are connected to the lower support 5 and the pivot rod 7 respectively. The pivot rod 7 is hinged to the vertical rod 8 and the lower support 5. The vertical rod 8 is hinged to the upper support 9 and the pivot rod 7. The additional damper 10 and the additional spring 11 are connected to the upper support 9 via the upper connecting piece 14. The negative stiffness energy dissipation efficiency enhancement unit is connected to the support pad unit 4 via the top connecting plate 12 using high-strength bolts. There are six negative stiffness energy dissipation efficiency enhancement units, arranged symmetrically around the disc spring 2, and connected in parallel with the disc spring support vibration isolation unit.

[0028] In the embodiments disclosed herein, such as Figure 2 As shown, the disc spring support vibration isolation unit includes a support pad 1 and a disc spring 2. The support pad 1 and the disc spring 2 are connected by welding. The bottom is connected to the vehicle body by a high-strength bolt through a bottom connector 13, and the top is connected to the support pad unit 4 by bolts.

[0029] In the embodiments disclosed herein, such as Figure 3 , Figure 4 As shown, a rotating eddy current damping unit is installed in the middle of the disc spring-supported vibration isolation unit, and the two can deform together. The rotating eddy current damping unit includes an upper connecting plate 15, a threaded screw 16, a permanent magnet outer cylinder 17, a threaded slotted inner cylinder 18, and a bottom connecting plate 19; wherein the threaded screw 16 is placed inside the threaded slotted inner cylinder 18. When the vibration isolation layer deforms, the threaded screw 16 rotates in the threaded slotted inner cylinder 18 through the thread and cuts the magnetic field lines generated by the permanent magnet outer cylinder 17, assisting the vibration isolation layer in dissipating vibration input energy and generating eddy current / inertial capacitance effect, thereby improving the vibration isolation effect of the vibration isolation layer.

[0030] In the embodiments disclosed herein, such as Figure 5As shown, the support pad unit 4 can adjust its support curvature according to the actual size of the cylindrical equipment being transported using the fastening bolts 20 and the preload beam 21, in order to adapt to cylindrical equipment of different sizes. At the same time, the support pad 1 at the bottom of the disc spring-supported vibration isolation unit and the lower bracket 5 of the negative stiffness energy dissipation and efficiency enhancement unit, and the support pad 1 at the top of the spring-supported vibration isolation unit and the top connecting plate 12 of the negative stiffness energy dissipation and efficiency enhancement unit are integrally formed, ensuring that the entire installation unit is more robust and reliable.

[0031] The large cylindrical equipment high-flexibility vehicle-mounted interaction system and device described in this embodiment can obtain a high-flexibility vibration isolation layer under dynamic load while providing sufficient vertical bearing capacity, achieving a better vertical vibration isolation effect. At the same time, it dissipates more vibration input energy under the same vibration isolation layer displacement, improves the vertical vibration isolation capability of the vibration isolation system, and thus improves the safety and reliability of long-distance transportation.

[0032] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the invention in any way. Any changes or modifications made by those skilled in the art based on the above-disclosed technical content should be considered as equivalent and valid embodiments, and all fall within the scope of protection of the present invention.

Claims

1. A highly flexible vehicle-mounted interaction device for large cylindrical equipment, characterized in that: This includes disc spring-supported vibration isolation unit, negative stiffness energy dissipation enhancement unit, rotating eddy current damping unit, and support pad unit; The disc spring support vibration isolation unit and the negative stiffness energy dissipation efficiency enhancement unit are fixed to the transport vehicle body and connected to the support pad unit. The negative stiffness energy dissipation efficiency enhancement unit includes several units, which are fixedly installed around the aforementioned disc spring support vibration isolation unit; The rotating eddy current damping unit is installed inside the aforementioned disc spring-supported vibration isolation unit; The negative stiffness energy dissipation efficiency enhancement unit includes a lower support, a preload spring, a pivot rod, a vertical rod, an upper support, an additional damper, an additional spring, a top connecting plate, a bottom connecting piece, and an upper connecting piece; The preload spring provides preload force by setting a preload value; The two ends of the preloaded spring are connected to the lower support and the pivot rod, respectively; The pivot rod is hinged to the vertical rod and the lower support; The vertical rod is hinged to the upper support and the pivot rod; The additional damping and additional spring are connected to the upper support via an upper connector; The negative stiffness energy-saving unit is connected to the aforementioned support pad unit via a top connecting plate.

2. The highly flexible vehicle-mounted interaction device for large cylindrical equipment according to claim 1, characterized in that: The disc spring-supported vibration isolation unit includes a support pad and a disc spring; the support pad and the disc spring are connected by welding. The bottom of the disc spring is fixedly connected to the transport vehicle body, and the top of the disc spring is connected to the aforementioned support pad unit. The negative stiffness energy dissipation enhancement unit is symmetrically arranged around the aforementioned disc spring.

3. The highly flexible vehicle-mounted interaction device for large cylindrical equipment according to claim 2, characterized in that: The rotating eddy current damping unit is installed in the middle of the aforementioned disc spring supported vibration isolation unit; The rotating eddy current damping unit includes an upper connecting plate, a threaded screw, a permanent magnet outer cylinder, a threaded slotted inner cylinder, and a bottom connecting plate. The threaded screw is placed inside the aforementioned threaded slotted inner cylinder. When the vibration isolation layer deforms, the threaded screw can rotate inside the threaded slotted inner cylinder through the thread and cut the magnetic field lines generated by the permanent magnet outer cylinder.

4. The highly flexible vehicle-mounted interaction device for large cylindrical equipment according to claim 1, characterized in that: The top of the support pad unit is set as a curved preload beam; the lower part of the preload beam is provided with fastening bolts; the support curvature of the preload beam is adjusted according to the size of the cylindrical equipment to be transported by fastening bolts.

5. The highly flexible vehicle-mounted interaction device for large cylindrical equipment according to claim 2 or 3, characterized in that: The disc spring supports the bottom support pad of the vibration isolation unit and the lower bracket of the negative stiffness energy dissipation and efficiency enhancement unit, and the disc spring supports the top support pad of the vibration isolation unit and the top connecting plate of the negative stiffness energy dissipation and efficiency enhancement unit are integrally formed.

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