Large cylindrical equipment high-flexibility vehicle-mounted interaction system and device

Abstract

A high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment belongs to the technical field of vehicle-mounted damping, and is characterized by comprising a disc spring support vibration isolation unit, a negative stiffness energy consumption synergistic unit, a rotary eddy current damping unit and a support cushion block unit, the disc spring supporting vibration isolation unit and the negative stiffness energy consumption synergistic unit are fixed to the transport vehicle body and connected with the supporting cushion block unit. A plurality of negative stiffness energy consumption synergistic units are fixedly arranged on the periphery of the disc spring supporting vibration isolation unit; the rotary eddy current damping unit is installed in the disc spring supporting vibration isolation unit. Based on the belleville springs and a negative stiffness mechanism, a high-flexibility vibration isolation layer under dynamic load can be obtained while enough vertical bearing force is provided, a good vertical vibration isolation effect is achieved, long-distance road transportation vertical vibration of large cylindrical equipment can be effectively isolated, vibration input energy can be efficiently dissipated, and good application and popularization value is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle-mounted shock absorption, and particularly relates to a high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment. Background Art

[0002] During the long-distance transportation of large cylindrical equipment, it will inevitably be affected by long-term random road surface vibration loads and occasional road surface pulse loads, which may cause minor damage inside the large cylindrical equipment, and then lead to structural damage and functional failure. In view of this, it is very necessary to further explore methods to improve the vibration safety and reliability of large cylindrical equipment under the action of random road surface vibration loads and occasional road surface pulse loads during long-distance transportation, and to reduce the possible adverse effects of long-term transportation vibration or occasional vibration on large cylindrical equipment.

[0003] However, the existing vibration isolation devices for transporting cylindrical equipment mainly use flexible materials (such as rubber pads, laminated rubber bearings) and disc spring materials to provide low vertical vibration isolation stiffness to isolate vibration, and cannot solve the contradiction between high-performance vibration isolation and high load-bearing capacity during the transportation of large cylindrical equipment. In response to this problem, researchers have proposed a series of quasi-zero stiffness devices to adapt to the independent design of static stiffness and dynamic stiffness. However, the working deformation range of these devices is difficult to adapt to the large vertical deformation vibration of large cylindrical equipment during long-distance transportation, and it is difficult to provide effective acceleration control to meet the functional stability of large cylindrical equipment. It is urgent to effectively develop new devices to ensure the structural safety and reliability of large cylindrical equipment under long-distance road transportation and storage environments. Summary of the Invention

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

[0005] The high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment of the present invention includes a disc spring support vibration isolation unit, a negative stiffness energy dissipation and efficiency enhancement unit, a rotary eddy current damping unit, and a support pad unit; The disc spring support vibration isolation unit and the negative stiffness energy dissipation and efficiency enhancement unit are fixed to the transportation vehicle body by high-strength bolts or welding. The support cushion unit is fixedly connected above the disc spring support vibration isolation unit to support large cylindrical equipment. There are several negative stiffness energy dissipation and efficiency enhancement units, which are fixedly arranged around the aforementioned disc spring support vibration isolation unit; the rotary eddy current damping unit is installed inside the disc spring support vibration isolation unit and is fixedly connected to it by high-strength bolts to deform synergistically. Under the vibration environment of long-distance transportation of large cylindrical equipment, it can effectively isolate the vertical vibration of the structure under the action of random vibration loads on the road surface and accidental pulse loads on the road surface, and improve the safety and reliability of long-distance road transportation of large cylindrical equipment.

[0006] Furthermore, for the high-flexibility vehicle-mounted interaction system and device of large cylindrical equipment of the present invention, the negative stiffness energy dissipation and efficiency enhancement unit includes a lower bracket, a pre-compressed spring, a pivot rod, a vertical rod, an upper bracket, additional damping, an additional spring, a top connection plate, a bottom connection part, and an upper connection part.

[0007] The pre-compressed spring provides a pre-pressure by setting a pre-pressure value, thereby promoting the deformation movement of the negative stiffness mechanism. The two ends of the pre-compressed spring are respectively connected to the lower bracket and the pivot rod; the pivot rod is hingedly connected to the vertical rod and the lower bracket, and the vertical rod is hingedly connected to the upper bracket and the pivot rod; the additional damping and the additional spring are connected to the upper bracket through the upper connection part; the negative stiffness energy dissipation and efficiency enhancement unit is connected to the aforementioned support cushion unit through the top connection plate by high-strength bolts or welding.

[0008] Furthermore, for the high-flexibility vehicle-mounted interaction system and device of large cylindrical equipment of the present invention, the disc spring support vibration isolation unit includes a support cushion block and a disc spring. The support cushion block and the disc spring are connected by welding. The number and stacking form (such as laminated, opposed laminated, or combined laminated, etc.) of the disc springs can be designed and selected according to the weight of the equipment to be carried. The bottom of the disc spring is connected to the transportation vehicle body by high-strength bolts or welding, and the top of the disc spring is connected to the support cushion unit by bolts. The negative stiffness energy dissipation and efficiency enhancement units are arranged around the disc spring in a symmetric layout and are connected in parallel with the disc spring support vibration isolation unit.

[0009] Under the action of external transportation vibration loads, the negative stiffness effect can further reduce the stiffness of the isolation layer and improve the vibration isolation ability of the isolation layer. At the same time, through the negative stiffness amplification mechanism of the negative stiffness energy dissipation and efficiency enhancement unit, the deformation of the additional damping can be amplified, and more vibration input energy can be dissipated under the condition of the same displacement of the isolation layer, effectively improving the vibration isolation ability of the isolation layer. For transportation loads of different weights, some disc spring pieces and negative stiffness units can be conveniently added or removed after calculation and analysis to adapt to the transportation vibration isolation effect under different weights.

[0010] Furthermore, for the high-flexibility vehicle-mounted interaction system and device of large cylindrical equipment in the present invention, the rotary eddy current damping unit is installed in the middle of the aforementioned disc spring support vibration isolation unit, and the two can deform synergistically; the rotary eddy current damping unit includes an upper connecting plate, a threaded lead screw, an outer cylinder of permanent magnet, a threaded slotted inner cylinder and a bottom connecting plate. The threaded lead screw is placed inside the threaded slotted inner cylinder. When the vibration isolation layer deforms, the threaded lead screw can rotate through the thread inside the threaded slotted inner cylinder and cut the magnetic induction lines generated by the outer cylinder of permanent magnet, further assisting the vibration isolation layer to dissipate the vibration input energy and generating an eddy current / inertance effect, thus enhancing the vibration isolation effect of the vibration isolation layer.

[0011] Furthermore, for the high-flexibility vehicle-mounted interaction system and device of large cylindrical equipment in the present invention, the top of the support pad unit is provided with a preloading beam with a curved surface; a fastening bolt is provided below the preloading beam; the support pad unit can adjust its support arc according to the size of the cylindrical equipment to be transported by using the fastening bolt, so as to adapt to cylindrical equipment of different sizes.

[0012] Furthermore, for the high-flexibility vehicle-mounted interaction system and device of large cylindrical equipment in the present invention, the support pad at the bottom of the disc spring support vibration isolation unit and the lower bracket of the negative stiffness energy dissipation and efficiency enhancement unit, and the support pad at the top of the disc spring support vibration isolation unit and the top connecting plate of the negative stiffness energy dissipation and efficiency enhancement unit are integrally processed and formed, which can ensure that the whole installation unit is more firm and reliable.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention establishes a high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment. Based on the disc spring and the negative stiffness mechanism, a high-flexibility vibration isolation layer under dynamic load can be obtained while providing sufficient vertical bearing capacity, achieving a good vertical vibration isolation effect. At the same time, under the condition of the same displacement of the vibration isolation layer, more vibration input energy is dissipated, enhancing the vertical vibration isolation ability of the vibration isolation system.

[0014] 2. The present invention installs the eddy current damping device in the middle of the disc spring vibration isolation device, which can deform synergistically with the disc spring. During the deformation process, the eddy current effect generated by cutting the magnetic induction lines by the threaded lead screw further dissipates the vibration input energy. At the same time, the formed eddy current / inertance effect can specifically control the acceleration response of the transported cylindrical equipment, further enhancing the vertical vibration isolation effect of the vibration isolation layer.

[0015] 3. The support pad unit of the present invention can adjust the arc of the support surface through the preloading beam and the fastening bolt, and can adapt to large cylindrical transportation equipment of different sizes, improving the safety and reliability of long-distance transportation.

[0016] 4. The present invention can be parametrically designed and modularly constructed and assembled according to the required load, and can effectively isolate the vertical vibration during the long-distance road transportation of large cylindrical equipment and efficiently dissipate the vibration input energy beam, having good popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of the application scenario of the high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention; Figure 2 FIG. is a schematic structural diagram of the high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention; Figure 3 FIG. is a schematic cross-sectional structural diagram of the high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention; Figure 4 FIG. is a schematic structural diagram of the rotary eddy current damping unit of the high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention; Figure 5 FIG. is a schematic structural diagram of the support pad unit of the high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment according to an embodiment of the present invention; Wherein, 1 - support pad, 2 - disc spring, 3 - transport vehicle, 4 - support pad unit, 5 - lower bracket, 6 - preloading spring, 7 - pivot rod, 8 - vertical rod, 9 - upper bracket, 10 - additional damping, 11 - additional spring, 12 - top connection plate, 13 - bottom connection piece, 14 - upper connection piece, 15 - upper connection plate, 16 - threaded lead screw, 17 - outer cylinder of permanent magnet, 18 - internally threaded slotted inner cylinder, 19 - bottom connection plate, 20 - fastening bolt, 21 - preloading beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment according to the present invention will be described in detail below with reference to the drawings and embodiments, but it is not intended to limit the present invention.

[0019] This embodiment discloses a high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment. As Figure 1 shown, the high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment is installed between the transport vehicle 3 body and the large cylindrical equipment, playing a role in vertical vibration isolation. As Figure 1 , Figure 2As shown, it includes a disc spring support vibration isolation unit, a negative stiffness energy dissipation and efficiency enhancement unit, a rotating eddy current damping unit, and a support pad unit 4; the disc spring support vibration isolation unit and the negative stiffness energy dissipation and efficiency enhancement unit are fixed to the transport vehicle 3 body and connected to the support pad unit 4; the negative stiffness energy dissipation and efficiency enhancement unit is fixedly arranged around the aforementioned disc spring support vibration isolation unit; the rotating eddy current damping unit is installed inside the aforementioned disc spring support vibration isolation unit.

[0020] In the embodiment of the present disclosure, as Figure 2 shown, the negative stiffness energy dissipation and efficiency enhancement unit includes a lower bracket 5, a preloaded spring 6, a pivot rod 7, a vertical rod 8, an upper bracket 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. Among them, the preloaded spring 6 can provide a preload force by setting a preload value to promote the deformation movement of the negative stiffness mechanism. The two ends of the preloaded spring 6 are respectively connected to the lower bracket 5 and the pivot rod 7, the pivot rod 7 is hinged to the vertical rod 8 and the lower bracket 5, the vertical rod 8 is hinged to the upper bracket 9 and the pivot rod 7, the additional damper 10 and the additional spring 11 are connected to the upper bracket 9 through the upper connecting piece 14, and the negative stiffness energy dissipation and efficiency enhancement unit is connected to the support pad unit 4 with high-strength bolts through the top connecting plate 12. There are six negative stiffness energy dissipation and efficiency enhancement units, which are arranged around the disc spring 2 in a symmetric layout and are connected in parallel with the disc spring support vibration isolation unit.

[0021] In the embodiment of the present disclosure, as Figure 2 shown, the disc spring support vibration isolation unit includes a support pad 1 and a disc spring 2. A welding connection form is adopted between the support pad 1 and the disc spring 2. The bottom is connected to the vehicle body with high-strength bolts through the bottom connecting piece 13, and the top is connected to the support pad unit 4 with bolts.

[0022] In the embodiment of the present disclosure, as Figure 3 、 Figure 4 shown, a rotating eddy current damping unit is installed in the middle of the disc spring support vibration isolation unit, and the two can deform synergistically. The rotating eddy current damping unit includes an upper connecting plate 15, a threaded lead screw 16, a permanent magnet outer cylinder 17, a threaded slotted inner cylinder 18, and a bottom connecting plate 19; among them, the threaded lead screw 16 is placed inside the threaded slotted inner cylinder 18. When the vibration isolation layer deforms, the threaded lead screw 16 rotates through the thread inside the threaded slotted inner cylinder 18 and cuts the magnetic induction lines generated by the permanent magnet outer cylinder 17, assisting the vibration isolation layer to dissipate the vibration input energy and generating an eddy current / inertance effect, thereby enhancing the vibration isolation effect of the vibration isolation layer.

[0023] In the embodiment of the present disclosure, as Figure 5As shown, the support pad unit 4 can adjust its support arc according to the size of the cylindrical equipment actually transported by using the fastening bolts 20 and the preloading beam 21 to adapt to cylindrical equipment of different sizes. At the same time, the support pad 1 at the bottom of the disc spring support 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 support vibration isolation unit and the top connecting plate 12 of the negative stiffness energy dissipation and efficiency enhancement unit are integrally processed and formed to ensure that the entire installation unit is more firm and reliable.

[0024] The high-flexibility vehicle-mounted interaction system and device for large cylindrical equipment in this embodiment can obtain a high-flexibility vibration isolation layer under dynamic loads while providing sufficient vertical bearing capacity, achieving a good vertical vibration isolation effect. At the same time, under the condition of the same vibration isolation layer displacement, more vibration input energy can be dissipated, enhancing the vertical vibration isolation ability of the vibration isolation system, and further improving the transportation safety and reliability over long distances.

[0025] The above description is only for the description of the preferred embodiments of the present invention and does not limit the scope of the present invention in any way. Any change or modification made by any ordinary person skilled in the art based on the technical content disclosed above should be regarded as an equivalent effective embodiment and fall within the scope of protection of the technical solution of the present invention.

Claims

1. A highly flexible vehicle-mounted interaction system and device for large cylindrical equipment, characterized in that: It 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; 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 cushion block unit; The negative stiffness energy dissipation efficiency enhancement units include a plurality of units fixedly arranged around the disc spring support vibration isolation unit; The rotating eddy current damping unit is installed inside the aforementioned disc spring support vibration isolation unit.

2. According to claim 1, the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment is characterized by: The negative stiffness energy dissipation efficiency unit comprises a lower bracket, a preload spring, a pivot rod, a vertical rod, an upper bracket, an additional damper, an additional spring, a top connecting plate, a bottom connecting piece and an upper connecting piece; The pre-compression spring provides pre-compression by setting a pre-compression value; The two ends of the preload spring are respectively connected to the lower bracket and the pivot rod; The pivot rod is hingedly connected to the vertical rod and the lower bracket; The vertical rod is hingedly connected to the upper bracket and the pivot rod; The additional damping and the additional spring are connected to the upper bracket via an upper connecting member; The negative stiffness energy dissipation efficiency enhancement unit is connected to the aforementioned support pad unit via a top connecting plate.

3. According to claim 2, the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment is characterized by: The disc spring support vibration isolation unit comprises 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 efficiency enhancement unit is symmetrically arranged around the disc spring.

4. According to claim 3, the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment is characterized by: The rotating eddy current damping unit is installed in the middle of the disc spring support vibration isolation unit; The rotating eddy current damping unit comprises 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 in the aforementioned threaded slotted inner cylinder. When the vibration isolation layer is deformed, the threaded screw can rotate through the threads in the threaded slotted inner cylinder and cut the magnetic flux lines generated by the permanent magnet outer cylinder.

5. According to claim 1, the highly flexible vehicle-mounted interaction system and device for large cylindrical equipment is characterized by: The top of the support pad unit is arranged as a curved pre-stressing beam; the lower part of the pre-stressing beam is arranged with fastening bolts; the supporting curvature of the pre-stressing beam is adjusted according to the size of the cylindrical equipment to be transported by the fastening bolts.

6. The highly flexible vehicle-mounted interaction system and device for large cylindrical equipment according to claim 3 or 4, characterized in that: The support pad at the bottom of the disc spring support vibration isolation unit and the lower bracket of the negative stiffness energy dissipation efficiency unit, the support pad at the top of the spring support vibration isolation unit and the top connecting plate of the negative stiffness energy dissipation efficiency unit are formed by integral processing.

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