CN111336204A - Vertical vibration isolation device - Google Patents
Vertical vibration isolation device Download PDFInfo
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- CN111336204A CN111336204A CN202010096882.1A CN202010096882A CN111336204A CN 111336204 A CN111336204 A CN 111336204A CN 202010096882 A CN202010096882 A CN 202010096882A CN 111336204 A CN111336204 A CN 111336204A
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- connecting plate
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- vibration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
- F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
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- Civil Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a vertical vibration isolation device which mainly comprises an upper connecting plate, a self-adaptive stiffness unit, a slidable oblique rectangular compression spring unit and a lower connecting plate. The self-adaptive stiffness unit mainly comprises a positioning loading ring, a disk spring and a pre-pressed rectangular spring, wherein the positioning loading ring and the disk spring are connected in parallel to work to provide vertical negative stiffness, the pre-pressed rectangular spring provides vertical positive stiffness, and the positioning loading ring and the disk spring are matched to work to generate self-adaptive stiffness; the slidable oblique rectangular compression spring unit consists of an oriented linear guide rail, an oblique rectangular compression spring and a universal joint, wherein the vertical sliding block moves downwards along the oriented linear guide rail to enable the oblique rectangular spring to generate axial compression deformation, and the elastic potential energy and the kinetic energy are mutually converted to dissipate energy. The self-adaptive stiffness unit and the slidable oblique rectangular compression spring unit work in parallel and deform in a coordinated mode to jointly realize vertical vibration isolation. The invention can be widely applied to buildings or large and medium-sized mechanical equipment near rail transit with higher requirements on vibration reduction.
Description
Technical Field
The invention relates to a vertical vibration isolation device, and belongs to the technical field of vibration isolation of civil engineering and mechanical engineering.
Background
With the improvement of the urbanization rate of China, urbanization gradually develops to urbanization, urban land is tense, the development of rail transit becomes the most effective mode for solving urban traffic, rail transit lines can penetrate population gathering areas and some urban buildings and tend to bring about vibration to people and equipment in the buildings, particularly, the foundation of the rail transit upper cover building is directly arranged on vibration source excitation caused by subways, so that the influence on the environment is larger than that of buildings along the rails, and the problem of vibration comfort caused by urban rail transit is solved, and corresponding vibration control measures are necessary to be adopted to reduce the vertical vibration influence of rail transit on the buildings.
On the other hand, for large and medium-sized precision instruments sensitive to vibration in buildings along the subway, the requirement for working environment is harsh, and the safety and data reliability of the instruments are directly affected by the operating state of the instruments, however, the vertical vibration caused by urban rail transit is transmitted to mechanical equipment through a workbench, so that the normal operation of the mechanical equipment is affected, and therefore measures are also needed to be taken to reduce the vibration of the large and medium-sized mechanical equipment.
For buildings sensitive to vertical vibration along a subway, a rubber support and a metal spring device are mainly adopted at present, the vertical rigidity of the rubber support is large, the vertical vibration reduction effect is not obvious, the vertical rigidity of the traditional metal spring device is small, more vibration reduction devices need to be connected in parallel for the buildings along the subway, the low-frequency vibration isolation effect is effective, resonance and propagation high-frequency vibration are easy to generate, and other measures are needed to be adopted for realizing cooperative vibration isolation.
The metal spring vibration isolation is adopted for large and medium-sized mechanical equipment mostly, the vibration damping effect of the vibration damping mechanism is not obvious due to the single positive and negative stiffness frequency of the spring, the vibration damping mechanism has a long vibration damping period, the stability of the equipment can be influenced, and the vibration damping mechanism cannot be directly applied to the large and medium-sized mechanical equipment along the rail transit line.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a vertical vibration isolation device, which realizes vertical vibration isolation jointly through the parallel operation of an adaptive stiffness unit and a vibration damping device, and the cooperative deformation.
The invention provides the following technical scheme:
a vertical vibration isolation device is characterized by comprising an upper connecting plate (6), a lower connecting plate (8), a self-adaptive rigidity unit and a vibration damping device;
the lower connecting plate (8) is designed into a box-type structure, the self-adaptive rigidity unit and the vibration damping device are arranged in the box body of the lower connecting plate (8), the self-adaptive rigidity unit and the vibration damping device are arranged in parallel, and the vibration damping device is arranged on the periphery of the self-adaptive rigidity unit; the upper connecting plate (6) is arranged at the top of the lower connecting plate (8) and is used for being connected with vibration-isolated mechanical equipment, and the lower connecting plate (8) is fixedly connected with the workbench through a bottom plate 83 thereof;
the self-adaptive stiffness unit comprises an actuating block (1), a positioning loading ring (2), a disc spring (3), a pre-pressed rectangular spring (4) and an outer sleeve (5), the disc spring (3) is placed in parallel through the positioning loading ring (2) to form a disc spring group, the pre-pressed rectangular spring (4) is located at the axis of the disc spring group, the outer sleeve (5) is arranged outside the disc spring group to ensure that the disc spring group only generates axial compression deformation, the actuating block (1) is placed on the upper portion of the pre-pressed rectangular spring (4) to transmit vertical vibration, the actuating block (1) is connected with an upper connecting plate (6) through a first bolt (7), and the outer sleeve (5) is connected with the bottom (83) of a lower connecting plate (8) through a second bolt (9);
the vibration damping device comprises a plurality of vibration damping functional units, and all units in a plane are uniformly distributed around the self-adaptive stiffness unit and are independent;
each vibration reduction functional unit comprises a slider mechanism for converting energy and an oblique spring mechanism for providing positive and negative stiffness, the slider mechanism comprises a linear guide rail (10) and a vertical slider (12), and the oblique spring mechanism comprises a cylindrical steel sleeve (13), a damping rubber pad (11), a rectangular compression spring (15), a threaded connecting piece (16), a transmission sleeve (17), a cross shaft (18) and a transmission shaft (19), wherein:
the linear guide rail (10) is fixedly connected with the side wall 81 of the lower connecting plate (8) through a sixth bolt (23); the vertical sliding block (12) is meshed with the linear guide rail (10) to restrict the movement form of vertical sliding;
the vertical sliding block (12) vertically inputs vibration transmitted from the outside through the upper connecting plate (6), and the oblique side of the vertical sliding block is connected with the oblique spring mechanism;
the vertical sliding block (12) is connected with the upper connecting plate (6) through a third bolt (20);
the rectangular compression spring (15) is arranged in the cylindrical steel sleeve (13) and is connected with the input end of the transmission sleeve (17); specifically, a damping rubber pad (11) is arranged between the rectangular compression spring (15) and the transmission sleeve (17), and the rectangular compression spring and the transmission sleeve are connected through a threaded connecting piece (16);
the transmission shaft (19) is fixedly connected with a bottom plate 83 of the lower connecting plate (8), and the movable end of the transmission shaft is connected with the output end of the transmission sleeve (17) through a cross shaft (18) to form a universal joint;
the cylindrical steel sleeve (13) is connected with the vertical sliding block (12) through a bolt four (21).
Further optimizing the technical scheme: the vibration damper also comprises a limiting rubber pad (11); lower junction plate (8) are through setting up upper portion roof 82, restrict the great deformation of vertical slider (12), prevent that elastic potential energy is too big and break away from lower junction plate (8), set up spacing rubber pad (11) simultaneously, reduce because of the impact that vertical slider (12) inertial action led to the fact upper portion roof 82 of lower junction plate (8).
Preferably, the outer sleeve is made of polytetrafluoroethylene materials, the actuating block is made of steel materials, and the outer sleeve is prevented from being damaged when the actuating block moves downwards by utilizing the characteristic that the contact friction coefficient of the polytetrafluoroethylene and the steel materials is small.
Preferably, the steel balls are arranged in the vertical sliding blocks, and can be infinitely rolled and circulated, so that the vertical sliding blocks do high-precision linear motion along the heavy-load linear guide rail.
Preferably, the vertical sliding block is provided with an oil nozzle, antirust oil is wiped clean before the guide rail is used for the first time, and then lubricating oil is added through the oil nozzle, so that the use accuracy and the lubrication smoothness of the guide rail are guaranteed.
Preferably, the vertical sliding block moves downwards along with vertical vibration, the rectangular compression spring is compressed, kinetic energy is converted into elastic potential energy, then the elastic potential energy is converted into kinetic energy, the vibration action time is prolonged, the amplitude is reduced, and energy generated by the vertical vibration is dissipated in the support.
Preferably, the pre-pressing rectangular spring and the rectangular compression spring are made of high-stress high-heat-resistance high-quality spring steel, the elastic performance is good, the precision is high, and the rectangular springs with different loads can be selected according to different vertical vibration amplitudes, so that the vibration reduction requirement is met.
The vertical vibration isolation device has the following beneficial effects:
(1) the vertical vibration isolation device has the advantages of convenience in assembly, high energy consumption efficiency and the like, all components are connected through the bolts, the assembly of factory manufacture can be realized, meanwhile, when the vertical vibration isolation device is installed on site, the upper support plate is connected with an upper structure or equipment through the bolts, the lower support plate is connected with a foundation or a workbench through the bolts, the site installation efficiency is improved, the vertical vibration isolation device is easy to replace after vibration loss, and the vertical vibration isolation device has a wide application prospect.
(2) The vertical vibration isolation device comprises a self-adaptive rigidity unit and a vibration damping device, wherein the self-adaptive rigidity unit and the vibration damping device work in parallel and cooperatively deform to jointly provide positive and negative rigidity, so that vertical vibration isolation is realized.
(3) According to the vertical vibration isolation device, the positioning loading ring and the disc spring work in parallel to provide vertical negative stiffness, the reserved gap between the disc spring group and the actuating block provides larger positive stiffness for the prepressing rectangular spring, the reset function of the device is ensured, and the positioning loading ring and the disc spring work in a matched mode to generate self-adaptive stiffness.
(4) According to the vertical vibration isolation device, in the manufacturing process, a passive control means of the prepressing force of the rectangular compression spring is applied, after the vertical vibration isolation device is installed, the kinetic energy of the vertical sliding block is converted into the elastic potential energy of the rectangular compression spring under the action of vertical vibration, then the rectangular compression spring rebounds, the elastic potential energy is converted into the kinetic energy of the sliding block, in the process, the acting time of upward movement is increased, the acting time of force is shortened, the energy is dissipated in the process, the vertical vibration isolation device has the self-resetting function, and meanwhile, the top plate and the limiting rubber pad on the connecting plate are arranged at the top, the movement of the vertical sliding block is restrained, and the inertial impact force of the vertical sliding.
(5) According to the vertical vibration isolation device, the actuating block and the outer sleeve are arranged to ensure that the disc spring group and the pre-pressed rectangular spring only deform axially and do not deform torsionally, the restoring force of the spring is fully exerted, and the outer sleeve is made of the polytetrafluoroethylene material, so that the actuating block is prevented from damaging the outer sleeve when moving downwards by utilizing the characteristic of small contact friction coefficient of the polytetrafluoroethylene and steel.
(6) According to the vertical vibration isolation device, the cylindrical steel sleeve and the universal joint work together, so that the rectangular compression spring is guaranteed to be longitudinally deformed, the torsional deformation of the spring is avoided, the deformation capacity of the rectangular compression spring is fully utilized, the energy is consumed, and the vertical vibration is reduced.
(7) The vertical vibration isolation device can reduce the vibration with different frequencies and amplitudes by changing the number of the disc spring groups and the rigidity coefficients of the pre-pressing rectangular springs and the inclined rectangular springs, and can be applied to buildings with heavier vertical load and sensitive to vertical vibration and large and medium-sized precise instruments with smaller vertical load.
Drawings
FIG. 1 is a cross-sectional view of a vertical vibration isolation device according to the present invention;
FIG. 2 is a front view of a vertical vibration isolation mounting of the present invention;
FIG. 3 is a top view of a vertical vibration isolation device of the present invention;
FIG. 4 is a schematic diagram of the construction of the adaptive stiffness unit of the present invention;
FIG. 5 is a schematic diagram of a disc spring pack construction according to the present invention;
FIG. 6 is a perspective view of a pre-stressed rectangular spring according to the present invention;
FIG. 7 is a schematic view of the structure of the vibration damping device of the present invention
FIG. 8 is a schematic view showing the construction of the vibration damping device of the present invention with the cylindrical steel sleeve removed;
FIG. 9 is a perspective view of the universal joint of the present invention;
FIG. 10 is a perspective view of a threaded connection of the present invention;
FIG. 11 is a perspective view of a cylindrical steel sleeve according to the present invention;
reference numbers in the figures:
the device comprises an actuating block 1, a positioning loading ring 2, a disc spring 3, a prepressing rectangular spring 4 and an outer sleeve 5;
an upper connecting plate 6 and a lower connecting plate 8; side wall 81, top plate 82, bottom plate 83;
the heavy-load linear guide rail comprises a heavy-load linear guide rail 10, a limiting rubber pad 11 and a vertical sliding block 12;
the damping rubber pad is arranged on the cylindrical steel sleeve 13, the rectangular compression spring 15, the threaded connecting piece 16, the transmission sleeve 17, the cross shaft 18 and the transmission shaft 19;
a first bolt 7, a second bolt 9, a third bolt 20, a fourth bolt 21, a fifth bolt 22 and a sixth bolt 23;
the oil nipple 24.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
Example 1: see fig. 1 and 2
Referring to fig. 3, as an example, a total of 4 sets of vibration damping devices are provided in the present embodiment, and under the action of vertical vibration, the 4 sets of vibration damping devices are linked to reduce the vertical vibration together, and the 4 sets of vibration damping devices are symmetrically arranged to prevent the instability of the structure or the equipment due to the excessive amplitude.
Fig. 4 is a schematic structural diagram of the adaptive stiffness unit, a schematic structural diagram of a disc spring set is shown in fig. 5, and a perspective view of a pre-stressed rectangular spring is shown in fig. 6. The positioning loading ring 2 and the disc spring 3 work in parallel to provide vertical negative stiffness, the prepressing rectangular spring 4 is in contact with the actuating block 1, a gap of 5-8 mm is reserved between the disc spring set and the actuating block 1, and the larger positive stiffness provided by the prepressing rectangular spring 4 is guaranteed, so that the self-adaptive stiffness unit has a self-resetting function, and the self-adaptive stiffness unit and the disc spring set work in a matched mode to generate self-adaptive stiffness. The outer sleeve 5 is made of polytetrafluoroethylene materials, the actuating block 1 is made of steel materials, and the characteristic that the contact friction coefficient of the polytetrafluoroethylene and the steel materials is small is utilized to ensure that the outer sleeve 5 cannot be damaged when the actuating block 1 moves downwards.
Fig. 7 and 8 are schematic views of the configuration of the vibration damping device. In the manufacturing process, a passive control means for applying pre-pressure of the rectangular compression spring 15 is adopted, after the installation is completed, under the action of vertical vibration, the kinetic energy of the vertical sliding block 12 is converted into the elastic potential energy of the rectangular compression spring 15, then the rectangular compression spring 15 rebounds, the elastic potential energy is converted into the kinetic energy of the vertical sliding block 12, in the process, the action time of upward movement is increased, so that the action time of force is reduced, the energy is dissipated in the process, the self-resetting function is realized, meanwhile, a top plate and a limiting rubber pad on a connecting plate are arranged at the top, the movement of the vertical sliding block 12 is restrained, and the inertial impact force of the vertical sliding block is reduced. The steel balls are arranged inside the vertical sliding block 12, and can be infinitely rolled and circulated, so that the vertical sliding block 12 can do high-precision linear motion along the heavy-load linear guide rail 10. The upper portion of the vertical sliding block 12 is provided with the oil nozzle 24, rust-proof oil is cleaned firstly before the guide rail is used for the first time, then lubricating oil is added through the oil nozzle, and the use accuracy and the lubrication smoothness of the guide rail are guaranteed.
The vertical sliding block (12) moves downwards along with vertical vibration, the rectangular compression spring (13) is compressed, kinetic energy is converted into elastic potential energy, then the elastic potential energy is converted into kinetic energy, the vibration action time is prolonged, the amplitude is reduced, and energy generated by vertical vibration is dissipated in the support.
Fig. 9, 10 and 11 are perspective views of a universal joint, a threaded connection and a cylindrical steel sleeve, respectively, according to the present invention. The universal joint is connected with the cylindrical steel sleeve 13 through the threaded connecting piece 16, so that the rectangular compression spring 15 is guaranteed to be longitudinally deformed, the torsional deformation of the spring is avoided, the deformation capacity of the rectangular compression spring 15 can be fully utilized, the energy consumption is reduced, and the vertical vibration is reduced.
The pre-pressed rectangular springs (4) and the rectangular compression springs (18) are made of high-stress high-heat-resistance high-quality spring steel, are good in elastic performance and high in precision, and can be selected from rectangular springs with different loads according to different vertical vibration amplitudes, so that the vibration reduction requirement is met.
The linear guide rail 10 adopts a heavy-load linear alloy steel guide rail, and the carbon content of the guide rail is 0.15-0.5%.
The vertical slide 12 may be made of high quality structural steel, such as 45 steel.
The cylindrical steel sleeve, the transmission sleeve, the cross shaft and the transmission shaft are all made of Q235 common carbon structural steel.
The first bolt 7, the second bolt 9, the third bolt 20, the fifth bolt 22 and the sixth bolt 23 are all M1410.9-level high-strength shear bolts, and the fourth bolt 21 is an M88.8-level high-strength bolt.
The vertical sliding block (12) is connected with the upper connecting plate (6) through a third bolt (20).
The cylindrical steel sleeve (13) is fixedly connected with the vertical sliding block (12) through a bolt four (21).
The transmission shaft (19) is connected with the lower connecting plate (8) through a fifth bolt (22).
The linear guide rail (10) is fixedly connected with the side wall 81 of the lower connecting plate (8) through a six-bolt (23).
The actuating block (1) is connected with the upper connecting plate (6) through a first bolt (7).
The outer sleeve (5) is connected with the bottom (83) of the lower connecting plate (8) through a second bolt (9).
The rectangular compression spring is made of high-stress high-heat-resistance high-quality spring steel (the carbon content of the spring steel is 0.6% -0.9%, the steel is required to have high tensile strength, elastic limit and high fatigue strength), the elastic property is good, the precision is high, and compression springs with different loads can be selected according to different vertical vibration amplitudes, so that the vibration reduction requirement is met.
The above are typical examples of the present invention, and the practice of the present invention is not limited thereto.
The above description is only illustrative of the preferred embodiments of the present invention and should not be taken as limiting the scope of the invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure should be considered as equivalent effective embodiments, and all the changes or modifications should fall within the protection scope of the technical solution of the present invention.
Claims (1)
1. A vertical vibration isolation device is characterized by comprising an upper connecting plate (6), a lower connecting plate (8), a self-adaptive rigidity unit and a vibration damping device;
the lower connecting plate (8) is designed into a box-type structure, the self-adaptive rigidity unit and the vibration damping device are arranged in the box body of the lower connecting plate (8), the self-adaptive rigidity unit and the vibration damping device are arranged in parallel, and the vibration damping device is arranged on the periphery of the self-adaptive rigidity unit; the upper connecting plate (6) is arranged at the top of the lower connecting plate (8) and is used for being connected with vibration-isolated mechanical equipment, and the lower connecting plate (8) is fixedly connected with the workbench through a bottom plate 83 thereof;
the self-adaptive stiffness unit comprises an actuating block (1), a positioning loading ring (2), a disc spring (3), a pre-pressed rectangular spring (4) and an outer sleeve (5), the disc spring (3) is placed in parallel through the positioning loading ring (2) to form a disc spring group, the pre-pressed rectangular spring (4) is located at the axis of the disc spring group, the outer sleeve (5) is arranged outside the disc spring group to ensure that the disc spring group only generates axial compression deformation, the actuating block (1) is placed on the upper portion of the pre-pressed rectangular spring (4) to transmit vertical vibration, the actuating block (1) is connected with an upper connecting plate (6) through a first bolt (7), and the outer sleeve (5) is connected with the bottom (83) of a lower connecting plate (8) through a second bolt (9);
the vibration damping device comprises a plurality of vibration damping functional units, and all units in a plane are uniformly distributed around the self-adaptive stiffness unit and are independent;
each vibration reduction functional unit comprises a slider mechanism for converting energy and an oblique spring mechanism for providing positive and negative stiffness, the slider mechanism comprises a linear guide rail (10) and a vertical slider (12), and the oblique spring mechanism comprises a cylindrical steel sleeve (13), a damping rubber pad (11), a rectangular compression spring (15), a threaded connecting piece (16), a transmission sleeve (17), a cross shaft (18) and a transmission shaft (19), wherein:
the linear guide rail (10) is fixedly connected with the side wall 81 of the lower connecting plate (8) through a sixth bolt (23); the vertical sliding block (12) is meshed with the linear guide rail (10) to restrict the movement form of vertical sliding;
the vertical sliding block (12) vertically inputs vibration transmitted from the outside through the upper connecting plate (6), and the oblique side of the vertical sliding block is connected with the oblique spring mechanism;
the vertical sliding block (12) is connected with the upper connecting plate (6) through a third bolt (20);
the rectangular compression spring (15) is arranged in the cylindrical steel sleeve (13) and is connected with the input end of the transmission sleeve (17); specifically, a damping rubber pad (11) is arranged between the rectangular compression spring (15) and the transmission sleeve (17), and the rectangular compression spring and the transmission sleeve are connected through a threaded connecting piece (16);
the transmission shaft (19) is fixedly connected with a bottom plate 83 of the lower connecting plate (8), and the movable end of the transmission shaft is connected with the output end of the transmission sleeve (17) through a cross shaft (18) to form a universal joint;
the cylindrical steel sleeve (13) is connected with the vertical sliding block (12) through a bolt four (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010096882.1A CN111336204A (en) | 2020-02-14 | 2020-02-14 | Vertical vibration isolation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010096882.1A CN111336204A (en) | 2020-02-14 | 2020-02-14 | Vertical vibration isolation device |
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| CN111336204A true CN111336204A (en) | 2020-06-26 |
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| CN202010096882.1A Pending CN111336204A (en) | 2020-02-14 | 2020-02-14 | Vertical vibration isolation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981071A (en) * | 2020-07-21 | 2020-11-24 | 浙江零跑科技有限公司 | Rubber vibration isolation pad structure used in front cabin of automobile |
| CN113653195A (en) * | 2021-09-07 | 2021-11-16 | 株洲时代新材料科技股份有限公司 | Vertical vibration reduction support and vibration reduction method thereof |
| CN114673758A (en) * | 2022-03-21 | 2022-06-28 | 江南大学 | Drilling device based on positive and negative rigidity vibration reduction technology |
| CN116837983A (en) * | 2023-07-26 | 2023-10-03 | 广州大学 | Constant quasi zero stiffness vibration double-control device with dynamic global linear negative stiffness |
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| CN108457384A (en) * | 2018-01-18 | 2018-08-28 | 同济大学 | A kind of three-dimensional isolation of the adaptive stiffness characteristics of band/shake bearing |
| CN110388406A (en) * | 2019-08-19 | 2019-10-29 | 同济大学 | Bearing-type mobile decoupling three-dimensional isolation support |
| CN110439946A (en) * | 2019-07-30 | 2019-11-12 | 同济大学 | Equipment quasi-zero stiffness vibration isolators under a kind of railway vehicle truck |
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| CN106869568A (en) * | 2017-04-06 | 2017-06-20 | 杨维国 | A kind of three-dimensional isolation vibration absorber and its shock insulation oscillation damping method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111981071A (en) * | 2020-07-21 | 2020-11-24 | 浙江零跑科技有限公司 | Rubber vibration isolation pad structure used in front cabin of automobile |
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| CN114673758A (en) * | 2022-03-21 | 2022-06-28 | 江南大学 | Drilling device based on positive and negative rigidity vibration reduction technology |
| CN114673758B (en) * | 2022-03-21 | 2023-01-31 | 无锡瑞吉德机械有限公司 | Drilling device based on positive and negative rigidity vibration reduction technology |
| CN116837983A (en) * | 2023-07-26 | 2023-10-03 | 广州大学 | Constant quasi zero stiffness vibration double-control device with dynamic global linear negative stiffness |
| CN116837983B (en) * | 2023-07-26 | 2024-02-13 | 广州大学 | Constant quasi zero stiffness vibration double-control device with dynamic global linear negative stiffness |
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Application publication date: 20200626 |
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