CN220980222U - High damping type anti-swing vertical vibration isolator - Google Patents
High damping type anti-swing vertical vibration isolator Download PDFInfo
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- CN220980222U CN220980222U CN202322985786.4U CN202322985786U CN220980222U CN 220980222 U CN220980222 U CN 220980222U CN 202322985786 U CN202322985786 U CN 202322985786U CN 220980222 U CN220980222 U CN 220980222U
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- 238000013016 damping Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 229920002545 silicone oil Polymers 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a high damping type anti-swing vertical vibration isolator, which is characterized in that a viscous damper is arranged between an upper bottom plate and a lower bottom plate and positioned in the middle position, two guide rods are arranged between the upper bottom plate and the lower bottom plate, the lower surface of the upper bottom plate and the upper surface of the lower base are also provided with spring seats, the corresponding spring seats are respectively connected with two ends of the springs, springs are sleeved outside the guide rods, the upper bottom plate and the lower bottom plate are respectively connected with the ends of a pre-tightening rod, pre-tightening nuts are respectively arranged at the ends of the pre-tightening rods and positioned at the upper end of the upper bottom plate and the lower end of the lower bottom plate.
Description
Technical Field
The utility model relates to the technical field of vibration control, in particular to a high-damping type anti-swing vertical vibration isolator.
Background
The spring vibration isolation is used as an effective vibration reduction measure and can isolate the vibration transmission of the upper structure and the lower structure. The general design needs to ensure that the ratio of the excitation frequency to the vibration isolation structure frequency is larger thanThe smaller the damping ratio is, the better the structure vibration control effect is. And the frequency ratio is smaller than/>, taking into account the actual spring option and installation spaceWhen the excitation response is reduced by increasing the damping. Therefore, the use of viscous dampers can effectively increase the damping effect of the vibration isolator without adding rigidity. Meanwhile, the vertical vibration isolator cannot be overlapped with the gravity center, so that the structure is obviously swayed and twisted, anti-swaying measures are required to be added, and the vibration isolator is prevented from being too large in shearing deformation and vertical deformation, so that an improved technology is needed to solve the problem in the prior art.
Disclosure of utility model
The utility model aims to provide a high damping type anti-swing vertical vibration isolator which is arranged between controlled equipment and a foundation and is used for achieving vertical vibration isolation of the controlled equipment. The viscous damper provides high damping for the vibration isolator, the parallel springs provide rigidity for the vibration isolator, the guide rods provide horizontal resistance for the vibration isolator, the pre-tightening rods pre-compress the vibration isolator, the integrity of equipment is guaranteed, and the post installation is convenient, so that the problems in the background technology are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vertical isolator sways is prevented to high damping formula, includes upper plate, pretension pole, pretension nut, spring, guide bar, viscous damper, spring holder, lower plate, just be located the intermediate position between upper plate and the lower plate and be provided with viscous damper, still be provided with two guide bars between upper plate and the lower plate, the lower surface of upper plate and the upper surface of lower base still are provided with the spring holder, corresponding the spring holder links to each other with the both ends of spring respectively, the outside cover of guide bar is equipped with the spring, upper plate and lower plate still link to each other with the tip of pretension pole respectively, pretension pole tip just is provided with pretension nut in the upper end of upper plate and the lower extreme of lower plate.
Preferably, the high damping type anti-swing vertical vibration isolator provided by the utility model comprises a piston rod, an upper end cover, silicone oil, a piston, a cylinder barrel, a sealing ring A, a guide copper sleeve, a lower end cover and a sealing ring B, wherein the upper end cover and the lower end cover are respectively arranged at two ends of the cylinder barrel, the piston is movably arranged in the cylinder barrel, the piston is arranged at the middle position of the piston rod, guide holes are formed in the upper end cover and the lower end cover, the guide copper sleeve and the sealing ring A are arranged in the guide holes, the two ends of the piston rod respectively penetrate through the guide copper sleeve and the sealing ring A of the upper end cover and the lower end cover, and the sealing ring B is also arranged at the inner sides of the upper end cover and the lower end cover.
Preferably, the utility model provides a high damping type anti-swing vertical vibration isolator, wherein an upper end sleeve base is arranged on the lower surface of an upper bottom plate, an upper end pre-tightening rod hole is formed in the upper bottom plate, an upper end damper rod hole is formed in the middle of the upper bottom plate, the upper end sleeve base is matched with the top end of a guide rod, the upper end pre-tightening rod hole is matched with the top end of a pre-tightening rod, and the upper end damper rod hole is matched with the upper end of a piston rod of a viscous damper.
Preferably, the upper surface of the lower bottom plate is provided with a lower end sleeve base, the lower end sleeve base corresponds to the upper end sleeve base, the lower bottom plate is provided with a lower end pre-tightening rod hole, the lower end pre-tightening rod hole corresponds to the upper end pre-tightening rod hole, the middle position of the lower bottom plate is provided with a lower end damper rod hole, the lower end damper rod hole corresponds to the upper end damper rod hole, the lower end sleeve base is matched with the bottom end of the guide rod, the lower end pre-tightening rod hole is matched with the bottom end of the pre-tightening rod, the lower end damper rod hole is matched with the lower end of a piston rod of the viscous damper, and the lower bottom plate is further provided with a plurality of damper fixing threaded holes to be matched and connected with a lower end cover of the viscous damper.
Preferably, the high damping type anti-swing vertical vibration isolator provided by the utility model comprises a guide sleeve, a guide sleeve rod and a guide rod base, wherein one end of the guide sleeve rod is provided with the guide rod base, and the other end of the guide sleeve rod is movably arranged in the guide sleeve.
Compared with the prior art, the utility model has the beneficial effects that:
(1) Due to the existence of viscous damping, high damping can be provided in the vertical direction, and the damping effect of the structure is enhanced.
(2) Due to the adoption of the effect of parallel connection of the multiple springs, high rigidity can be provided in the vertical direction, and the displacement of the vertical vibration isolator is increased.
(3) Due to the existence of the guide rod, the vertical vibration isolator is ensured to move in a single degree of freedom in the vertical direction, the structure is prevented from transversely swinging, and the shock absorption effect of the structure is enhanced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic diagram of a viscous damping structure;
FIG. 4 is a schematic view of the structure of the upper base plate;
FIG. 5 is a schematic view of the structure of the lower plate;
fig. 6 is a schematic view of a guide bar structure.
In the figure: the upper base plate 1, the pre-tightening rod 2, the pre-tightening nut 3, the spring 4, the guide rod 5, the viscous damper 6, the spring seat 7, the lower base plate 8, the upper sleeve base 101, the upper pre-tightening rod hole 102, the upper damper rod hole 103, the guide sleeve 501, the guide sleeve rod 502, the guide rod base 503, the piston rod 601, the upper end cover 602, the silicone oil 603, the piston 604, the cylinder 605, the sealing ring A606, the guide copper sleeve 607, the lower end cover 608, the sealing ring B609, the lower sleeve base 801, the lower pre-tightening rod hole 802, the lower damper rod hole 803 and the damper fixing threaded hole 804.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, based on the embodiments of the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model;
It should be noted that, in the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc. are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a high damping type anti-swing vertical vibration isolator, which comprises an upper base plate 1, the pretension pole 2, pretension nut 3, spring 4, guide bar 5, viscous damper 6, spring holder 7, lower plate 8, be located the intermediate position between upper base plate 1 and the lower plate 8 and be provided with viscous damper 6, still be provided with two guide bars 5 between upper base plate 1 and the lower plate 8, the lower surface of upper base plate 1 and the upper surface of lower base still are provided with spring holder 7, corresponding spring holder 7 links to each other with the both ends of spring 4 respectively, the outside cover of guide bar 5 is equipped with spring 4, upper base plate 1 and lower plate 8 still link to each other with the tip of pretension pole 2 respectively, pretension pole 2 tip just is provided with pretension nut 3 in the upper end of upper base plate 1 and the lower extreme of lower plate 8; six springs 4 with the same rigidity and height are arranged between the upper base plate 1 and the lower base plate 8, and the high rigidity performance of the vertical vibration isolator is realized by parallel connection of a plurality of springs 4. In order to ensure that the springs 4 do not generate buckling lateral displacement in the vertical movement process, a guide rod 5 is arranged in the middle of the inner circles of the two springs 4, the guide rod 5 ensures the single-degree-of-freedom movement of the upper base plate 1 and the lower base plate 8, the springs 4 are prevented from being subjected to lateral force, spring seats 7 are arranged at two ends of the other four springs 4, the height of the seats exceeds 15% of the total length of the springs 4, the springs 4 can be effectively prevented from being separated from a base in the pulling and pressing process, the pre-tightening rod 2 is inserted into the holes of the upper base plate 1 and the holes of the lower base plate 8, threads are arranged at two ends of the pre-tightening rod 2, pre-tightening nuts 3 are screwed into threads at two ends of the pre-tightening rod 2, the upper base plate 8 and the lower base plate 8 are clamped, and the vertical vibration isolator is adjusted to be at a design height through the rotating nuts.
As shown in fig. 3, the viscous damper 6 includes a piston rod 601, an upper end cap 602, silicone oil 603, a piston 604, a cylinder 605, a sealing ring a606, a guiding copper sleeve 607, a lower end cap 608, and a sealing ring B609, wherein the upper end cap 602 and the lower end cap 608 are respectively provided at two ends of the cylinder 605, the piston 604 is movably provided in the cylinder 605, the piston 604 is provided at the middle position of the piston rod 601, the upper end cap 602 and the lower end cap 608 are both provided with guiding holes, the guiding copper sleeve 607 and the sealing ring a606 are provided in the guiding holes, the two ends of the piston rod 601 are respectively provided with the guiding copper sleeve 607 and the sealing ring a606 which are respectively penetrated in the upper end cap 602 and the lower end cap 608, and the sealing ring B609 is also provided at the inner sides of the upper end cap 602 and the lower end cap 608; the viscous damper 6 is a double-rod clearance type viscous damper 6, a pouring opening is formed in the upper portion of the upper base plate 1, and a piston rod 601 is welded with the pouring opening of the upper base plate 1. The lower end cover 608 of the viscous damper 6 is provided with 12 uniformly distributed threaded holes, the lower bottom plate 8 is also uniformly distributed with through holes, and the damper is fixed on the lower bottom plate 8 through the cooperation of screws and the threaded holes of the damper. A piston 604 is arranged in the middle of the piston rod 601, and the piston 604 is in threaded connection with the piston rod 601. The piston 604 and the piston rod 601 are placed in the cylinder 605, the cylinder 605 is in threaded connection with the lower end cover 608 and the upper end cover 602, silicone oil 603 is arranged in the cylinder 605, a sealing ring A606 is arranged in a guide hole of the end cover for preventing the silicone oil 603 from leaking in the movement process of the piston rod 601, a sealing ring B609 is arranged at the joint, horizontal force exists in the contact process of the piston rod 601 and the upper end cover 608, and the existence of the guide copper sleeve 607 can effectively protect the piston rod 601. There is a small gap between the piston 604 and the cylinder 605, and the piston 604 will drive the silicone oil 603 to flow during the movement.
As shown in fig. 4, the lower surface of the upper base plate 1 is provided with an upper sleeve base 101, the upper base plate 1 is provided with an upper pre-tightening rod hole 102, the middle position of the upper base plate 1 is provided with an upper damper rod hole 103, the upper sleeve base 101 is matched with the top end of the guide rod 5, the upper pre-tightening rod hole 102 is matched with the top end of the pre-tightening rod 2, and the upper damper rod hole 103 is matched with the upper end of the piston rod 601 of the viscous damper 6.
As shown in fig. 5, the upper surface of the lower base plate 8 is provided with a lower end sleeve base 801, the lower end sleeve base 801 corresponds to the upper end sleeve base 101, the lower base plate 8 is provided with a lower end pre-tightening rod hole 802, the lower end pre-tightening rod hole 802 corresponds to the upper end pre-tightening rod hole 102, the middle position of the lower base plate 8 is provided with a lower end damper rod hole 803, the lower end damper rod hole 803 corresponds to the upper end damper rod hole 103, the lower end sleeve base 801 is matched with the bottom end of the guide rod 5, the lower end pre-tightening rod hole 802 is matched with the bottom end of the pre-tightening rod 2, the lower end damper rod hole 803 is matched with the lower end of the piston rod 601 of the viscous damper 6, and the lower base plate 8 is also provided with a plurality of damper fixing threaded holes 804 which are matched and connected with the lower end cover 608 of the viscous damper 6.
As shown in fig. 6, the guide rod 5 comprises a guide sleeve 501, a guide sleeve rod 502 and a guide rod base 503, wherein one end of the guide sleeve rod 502 is provided with the guide rod base 503, and the other end of the guide sleeve rod 502 is movably arranged in the guide sleeve 501; grooves are formed in the two ends of the guide rod 5, and the guide rod is fixed on the upper bottom plate 8 and the lower bottom plate 8 in a groove welding mode, so that welding spots caused by overlarge transverse force can be effectively prevented from being broken. The guide sleeve 501 and the guide sleeve rod 502 are directly connected in a smooth manner, the guide sleeve rod 502 can slide freely in the guide sleeve 501, and the length of the guide sleeve 501 and the guide sleeve rod 502 is determined by the stroke of the vertical vibration isolator. The guide rod base 503 is provided with a round hole, the guide sleeve rod 502 is inserted into the guide rod base 503, and the connecting port adopts a welding mode.
The device mainly comprises a viscous damper 6, a guide rod 5, a spring 4, a pre-compression rod and an upper bottom plate 8, wherein a vertical vibration isolator is placed between controlled equipment and a foundation, the pre-compression rod 2 is removed, and the device can move in a single degree of freedom in the vertical direction. The external response is transmitted to the upper base plate 1, the upper base plate 1 generates vertical displacement to drive the piston rod 601, the guide sleeve and the six springs 4 of the viscous damper 6 to move simultaneously, the cylinder 605 of the viscous damper 6 is fixed on the lower base plate 8, the piston 604 generates displacement relative to the cylinder 605, and the silicone oil 603 in the cylinder 605 flows between gaps to generate damping; the vertical displacement generated by the upper bottom plate 1 drives the springs 4 to move, and the springs 4 are connected in parallel to provide rigidity for the device; the pre-tightening rod 2 clamps the upper bottom plate 8 and the lower bottom plate 8 through nuts at two ends to provide pre-tightening force for the device, and after the device is installed at a design position, the pre-tightening rod 2 can be taken out, and the vertical vibration isolation is in a natural compression state and can move up and down freely. The guide rod 5 adopts a plug-in mode, the guide sleeve rod 502 can freely move in the guide sleeve 501, when the vertical vibration isolator is acted by horizontal force, the guide rod 5 generates horizontal bending resistance, the vibration isolator is prevented from generating transverse displacement, the size of the guide rod 5 is determined according to design force of external response, the bending strength of the guide rod 5 is ensured to be larger than the horizontal force, and the function of resisting the horizontal force is realized.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Finally, what is to be described is: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (5)
1. A high damping type anti-swing vertical vibration isolator is characterized in that: including upper plate (1), pretension pole (2), pretension nut (3), spring (4), guide bar (5), viscidity attenuator (6), spring holder (7), lower plate (8), just be located intermediate position between upper plate (1) and lower plate (8) and be provided with viscidity attenuator (6), still be provided with two guide bars (5) between upper plate (1) and lower plate (8), the upper surface of upper plate (1) and lower base still is provided with spring holder (7), corresponding spring holder (7) link to each other with the both ends of spring (4) respectively, the outside cover of guide bar (5) is equipped with spring (4), upper plate (1) and lower plate (8) still link to each other with the tip of pretension pole (2) respectively, pretension pole (2) tip just are located upper end and the lower extreme of lower plate (8) of upper plate (1) and are provided with pretension nut (3).
2. The high damping anti-sway vertical vibration isolator of claim 1, wherein: the viscous damper (6) comprises a piston rod (601), an upper end cover (602), silicone oil (603), a piston (604), a cylinder barrel (605), a sealing ring A (606), a guide copper sleeve (607), a lower end cover (608) and a sealing ring B (609), wherein the upper end cover (602) and the lower end cover (608) are respectively arranged at two ends of the cylinder barrel (605), the piston (604) is movably arranged inside the cylinder barrel (605), the piston (604) is arranged at the middle position of the piston rod (601), guide holes are formed in the upper end cover (602) and the lower end cover (608), the guide copper sleeve (607) and the sealing ring A (606) are arranged in the guide holes, the two ends of the piston rod (601) are respectively penetrated into the guide copper sleeve (607) and the sealing ring A (606) of the upper end cover (602) and the lower end cover (608), and the sealing ring B (609) are further arranged on the inner sides of the upper end cover (602) and the lower end cover (608).
3. The high damping anti-sway vertical vibration isolator of claim 1, wherein: the lower surface of upper plate (1) is provided with upper end sleeve base (101), upper end pretension pole hole (102) have been seted up to upper plate (1), upper end attenuator pole hole (103) have been seted up to upper plate (1) intermediate position, upper end sleeve base (101) and guide bar (5) top cooperation, the top cooperation of upper end pretension pole hole (102) and pretension pole (2), upper end attenuator pole hole (103) and the upper end cooperation of piston rod (601) of viscous damper (6).
4. The high damping anti-sway vertical vibration isolator of claim 1, wherein: the upper surface of lower plate (8) is provided with lower end sleeve base (801), lower end sleeve base (801) corresponds with upper end sleeve base (101), lower extreme pretension pole hole (802) have been seted up to lower plate (8), lower extreme pretension pole hole (802) correspond with upper end pretension pole hole (102), lower end attenuator pole hole (803) have been seted up to lower plate (8) intermediate position, lower end attenuator pole hole (803) correspond with upper end attenuator pole hole (103), lower end sleeve base (801) cooperate with guide bar (5) bottom, lower extreme pretension pole hole (802) cooperate with the bottom of pretension pole (2), lower end attenuator pole hole (803) cooperate with the lower extreme of the piston rod (601) of sticky attenuator (6), lower plate (8) have still been seted up a plurality of attenuator fixed screw holes (804) and the lower end cover (608) cooperation of sticky attenuator (6) are connected.
5. The high damping anti-sway vertical vibration isolator of claim 1, wherein: the guide rod (5) comprises a guide sleeve (501), a guide sleeve rod (502) and a guide rod base (503), wherein one end of the guide sleeve rod (502) is provided with the guide rod base (503), and the other end of the guide sleeve rod (502) is movably arranged in the guide sleeve (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322985786.4U CN220980222U (en) | 2023-11-06 | 2023-11-06 | High damping type anti-swing vertical vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322985786.4U CN220980222U (en) | 2023-11-06 | 2023-11-06 | High damping type anti-swing vertical vibration isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220980222U true CN220980222U (en) | 2024-05-17 |
Family
ID=91043137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322985786.4U Active CN220980222U (en) | 2023-11-06 | 2023-11-06 | High damping type anti-swing vertical vibration isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220980222U (en) |
-
2023
- 2023-11-06 CN CN202322985786.4U patent/CN220980222U/en active Active
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