Double-mass vibration isolation structure for boiling cooling bed
By designing a double-plastic vibration isolation structure on the boiling cooling bed equipment, the problem of excessive vibration during the equipment operation affecting the processing accuracy is solved, and the effect of effective vibration isolation and reducing the impact of vibration is achieved.
Patent Information
- Application Number
- CN202421084079.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The boiling cooling bed equipment vibrates too much during operation, affecting the processing accuracy of the nearby machining equipment, resulting in low product accuracy and unqualified output.
A double-plastic vibration isolation structure is designed, including a support table, a vibration isolator group and a mass block. By isolating the boiling cooling bed equipment, the impact of vibration on the surrounding environment is reduced.
Effectively isolate the vibration during operation of the equipment, protect the surrounding environment and structure, meet the process needs of boiling cooling bed equipment, and reduce the impact on the vibration on the surrounding environment.
Smart Images
Figure CN222880212U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vibration isolation, in particular to a double-mass vibration isolation structure for a boiling cooling bed. Background Art
[0002] Fluidized bed equipment is an important equipment in the sand processing line. Usually, sand processing lines below 100t use fluidized bed equipment, accounting for about 60% of domestic casting automatic molding lines. In the sand mixing process, the moving parts of the fluidized bed equipment need to reach a certain vibration amplitude to meet the needs of the process;
[0003] At present, due to the excessive vibration of the boiling cooling bed equipment during operation, the machining accuracy of the machining equipment near the boiling cooling bed equipment has been reduced, which is manifested in the low accuracy of the machined products and the output of unqualified and inferior products. Utility Model Content
[0004] In order to solve the above problem, the utility model provides a double-mass vibration isolation structure for a boiling cooling bed to solve the problem.
[0005] In order to achieve the above objectives, this application provides the following technical solutions:
[0006] A double-mass vibration isolation structure for a boiling cooling bed comprises a support platform, vibration isolator groups are arranged on both sides of the top of the support platform, the top surfaces of multiple vibration isolator groups are arranged with the same mass block, and the top of the mass block is arranged with a boiling cooling bed device.
[0007] It is further configured as follows: the support platform includes a basic raft plate arranged at the bottom and legs installed on both sides of the top of the basic raft plate, and four groups of vibration isolators are arranged, which are symmetrically arranged on the upper surfaces of the two legs in pairs, front, back, left and right.
[0008] It is further configured as follows: a rectangular frame is provided between the two legs, and backfill soil is provided in the rectangular frame.
[0009] It is further configured as follows: the vibration isolator group includes a first vibration isolator and a second vibration isolator arranged front and back, the first vibration isolator is arranged outside the second vibration isolator, and the damping ratio of the first vibration isolator is greater than the damping ratio of the second vibration isolator.
[0010] It is further configured as follows: the mass block includes mass blocks arranged at the top ends of the first vibration isolator and the second vibration isolator, and a counterweight block arranged at the bottom surface of the middle part of the mass block, and the counterweight block is located in the middle position of the two legs.
[0011] It is further configured as follows: the lateral horizontal distance between the stiffness center of the first vibration isolator and the second vibration isolator and the center of gravity of the mass block is between 0%-5% of the side length of the mass block, and the longitudinal horizontal distance between the stiffness center of the first vibration isolator and the second vibration isolator and the center of gravity of the mass block is between 0%-5% of the side width of the mass block.
[0012] It is further configured that the total weight of the mass block is 2-5 times the dead weight of the boiling cooling bed equipment.
[0013] It is further configured as follows: the height of the base raft is between 950 mm and 1050 mm, and the height of the supporting legs is between 1750 mm and 1850 mm.
[0014] It is further configured as follows: the thickness of the polystyrene foam board is 150 mm.
[0015] It is further configured as follows: a polystyrene foam board is provided on the outer side of the supporting leg.
[0016] Compared with the prior art, the beneficial technical effects of the utility model are:
[0017] 1. The utility model adopts a double-mass vibration isolation design for the boiling cooling bed equipment, which can effectively isolate the vibration generated during the operation of the equipment, protect the surrounding environment and structure from the influence of vibration, and the newly added vibration isolation unit does not need to adjust the vibration isolation system of the original equipment, such as operating parameters, etc. The design of the double-mass vibration isolation foundation not only meets the process requirements of the boiling cooling bed equipment, but also reduces the vibration influence of the foundation on the surrounding environment, so that the surrounding environment meets the requirements of allowable vibration.
[0018] 2. The utility model involves less engineering content. During the transformation process, only the components connected to the boiling cooling bed equipment need to be removed, especially the foundation of the surrounding equipment will not be affected. Since there is no need to relocate the equipment and it will not affect the surrounding sand processing equipment, this technical solution will save a lot of money and has strong economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the specific implementation methods of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a front structural schematic diagram of the utility model;
[0021] Figure 2 It is a side cross-sectional view of the utility model;
[0022] Figure 3 for Figure 1 A local enlarged schematic diagram of the middle A;
[0023] Figure 4 This is a graph showing the relationship between vibration transmissibility and distribution mass.
[0024] Figure numerals: 0, boiling cooling bed equipment; 1, supporting platform; 2, foundation raft; 3, supporting legs; 4, rectangular frame; 5, first vibration isolator; 6, second vibration isolator; 7, matching mass block; 8, mass block; 9, counterweight block; 10, sand cushion layer; 11, waterproof layer; 12, bottom column. DETAILED DESCRIPTION
[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] 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.
[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] Example
[0029] Reference Figure 1-Figure 4 , a double-mass vibration isolation structure for a boiling cooling bed disclosed in the utility model, comprising a support platform 1, the support platform 1 is cast in concrete and has a concave concrete foundation; specifically, the support platform 1 comprises a basic raft plate 2 arranged at the bottom and legs 3 installed on both sides of the top of the basic raft plate 2;
[0030] In this embodiment, the height of the base raft 2 is between 950 mm and 1050 mm, and the height of the legs 3 is between 1750 mm and 1850 mm.
[0031] Furthermore, a rectangular frame 4 is provided between the two legs 3, and backfill soil is used in the rectangular frame 4. Furthermore, a polystyrene foam board (not shown in the figure) is provided on the outer side of the leg 3. As a vibration isolation material, the polystyrene foam board can reduce the vibration impact and transmission on the surrounding soil and floor. By backfilling a large amount of soil in the rectangular frame 4, the path length of the vibration can also be increased, further weakening the propagation of the vibration.
[0032] Two groups of vibration isolators are arranged at the top of the two legs 3. In this embodiment, four groups of vibration isolators are symmetrically arranged front to back and left to right.
[0033] Specifically, the vibration isolator group includes a first vibration isolator 5 and a second vibration isolator 6 which are arranged front and back, the first vibration isolator 5 is arranged outside the second vibration isolator 6 ; and the damping ratio of the first vibration isolator 5 is greater than the damping ratio of the second vibration isolator 6 .
[0034] In this embodiment, the parameters of the first vibration isolator 5 and the second vibration isolator 6 are shown in the following table:
[0035] Parts Name First vibration isolator Second vibration isolator quantity 4 4 Optimum load, kg 12000 12000 Vertical stiffness, kg / mm 480 480 Damping ratio 0.15 0.05 Intended use height, mm 320 320
[0036] The same mass block 7 is arranged at the top of multiple first vibration isolators 5 and multiple second vibration isolators 6. Specifically, the mass block 7 includes a mass block 8 arranged at the top of the first vibration isolator 5 and the second vibration isolator 6, and a counterweight block 9 arranged on the bottom surface of the middle part of the mass block 8, and the counterweight block 9 is located in the middle position of the two legs 3. The setting of the counterweight block 9 can reduce the center of gravity height of the overall mass block 7 and improve the anti-tilt performance of the overall structure.
[0037] Furthermore, a sand cushion layer 10 and a waterproof layer 11 are laid on the backfill soil and the supporting legs 3. Due to limited space on site, the only way to cast the quality blocks 7 on site is to use on-site formwork. The setting of the sand cushion layer 10 and the waterproof layer 11 is mainly to prevent the quality blocks 7 from sticking to the floor during the curing process.
[0038] The boiling cooling bed device 0 is arranged on the upper surface of the mass block 8. Specifically, a bottom column 12 is arranged below the boiling cooling bed device 0. The bottom column 12 is aligned with the first vibration isolator 5 or the second vibration isolator 6 respectively. Such an arrangement can evenly distribute the bending moment caused by the external load on the mass block 7, reducing the possibility of excessive force on the mass block 7 itself.
[0039] In this embodiment, the total weight of the mass block 7 is between 61-63 t, which is 2-5 times the weight of the fluidized bed cooling device 0. Figure 4It can be seen that when the mass block 7 is 2-5 times the boiling cooling bed device 0, the curvature of the transfer rate change is the largest, which shows that at this multiple, the vibration isolation effect of the present application is good, the design of the mass block 7 is reasonable, and the economy is high.
[0040] In this embodiment, the lateral horizontal distance between the stiffness center of the first vibration isolator 5 and the second vibration isolator 6 and the center of gravity of the mass block 7 is between 0%-5% of the side length of the mass block 8, and the longitudinal horizontal distance between the stiffness center of the first vibration isolator 5 and the second vibration isolator 6 and the center of gravity of the mass block 7 is between 0%-5% of the side width of the mass block 8.
[0041] The utility model can chisel out part of the legs 3 of the original equipment foundation while the original equipment foundation remains unchanged, and add a set of vibration isolation system in the chiseled area, so it is suitable for transformation projects. Specifically: first dismantle other equipment connected to the boiling cooling bed equipment 0 in the sand processing line to avoid damaging the connecting parts when the boiling cooling bed equipment 0 is lifted; chisel out the top of the legs 3 so that the height of the legs 3 is between 1750-1850mm, brush a layer of section treatment agent on the section, and finally pour C35 fine stone concrete for curing for 14 days; support the mold and cast the mass block 7 on the floor, and after the concrete is cured, use a lifting device to lift the mass block 7 and then install the vibration isolator group, and after the vibration isolator group is fully installed, the mass block 7 is steadily dropped.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A double-mass vibration isolation structure for a boiling cooling bed, characterized in that: include: A support platform (1) is provided with vibration isolator groups on both sides of the top of the support platform (1), the top surfaces of the plurality of vibration isolator groups are provided with the same mass block (7), and the top of the mass block (7) is provided with a boiling cooling bed device (0); the support platform (1) comprises a foundation raft (2) provided at the bottom and legs (3) installed on both sides of the top of the foundation raft (2), a rectangular frame (4) is provided between the two legs (3), and backfill soil is provided in the rectangular frame (4).
2. A double-mass vibration isolation structure for a boiling cooling bed according to claim 1, characterized in that: The vibration isolator groups are provided in four groups, which are symmetrically arranged in pairs on the upper surfaces of the two legs (3) in front, back, left and right directions.
3. A double-mass vibration isolation structure for a boiling cooling bed according to claim 2, characterized in that: The vibration isolator group comprises a first vibration isolator (5) and a second vibration isolator (6) which are arranged front and rear, the first vibration isolator (5) is arranged outside the second vibration isolator (6), and the damping ratio of the first vibration isolator (5) is greater than the damping ratio of the second vibration isolator (6).
4. A double-mass vibration isolation structure for a boiling cooling bed according to claim 3, characterized in that: The mass block (7) comprises a mass block (8) arranged at the top of the first vibration isolator (5) and the second vibration isolator (6), and a counterweight block (9) arranged on the bottom surface of the middle part of the mass block (8), and the counterweight block (9) is located in the middle position of the two legs (3).
5. A double-mass vibration isolation structure for a boiling cooling bed according to claim 4, characterized in that: The lateral horizontal distance between the stiffness center of the first vibration isolator (5) and the second vibration isolator (6) and the center of gravity of the mass block (7) is between 0% and 5% of the side length of the mass block (8), and the longitudinal horizontal distance between the stiffness center of the first vibration isolator (5) and the second vibration isolator (6) and the center of gravity of the mass block (7) is between 0% and 5% of the side width of the mass block (8).
6. A double-mass vibration isolation structure for a boiling cooling bed according to claim 1, characterized in that: The total weight of the mass block (7) is 2-5 times the deadweight of the boiling cooling bed device (0).
7. A double-mass vibration isolation structure for a boiling cooling bed according to claim 2, characterized in that: The height of the base raft (2) is between 950 mm and 1050 mm, and the height of the legs (3) is between 1750 mm and 1850 mm.
8. A double-mass vibration isolation structure for a boiling cooling bed according to claim 1, characterized in that: A polystyrene foam board is arranged on the outer side of the supporting leg (3).
9. A double-mass vibration isolation structure for a boiling cooling bed according to claim 8, characterized in that: The thickness of the polystyrene foam board is 150 mm.