CN220726949U - Distributed spring vibration absorber - Google Patents
Distributed spring vibration absorber Download PDFInfo
- Publication number
- CN220726949U CN220726949U CN202321842111.8U CN202321842111U CN220726949U CN 220726949 U CN220726949 U CN 220726949U CN 202321842111 U CN202321842111 U CN 202321842111U CN 220726949 U CN220726949 U CN 220726949U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- mass block
- vibration absorber
- face
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 75
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 230000000670 limiting effect Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 230000005284 excitation Effects 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a distributed spring vibration absorber, which belongs to the technical field of vibration noise control and comprises a mass block, an upper cover plate, a lower cover plate, an upper spring group, a lower spring group and an outer cylinder; the mass block is cylindrical; the upper cover plate is covered at the upper end of the mass block; the upper spring group comprises a plurality of springs which are compressed and pre-tensioned between the upper cover plate and the mass block; the lower cover plate is covered at the lower end of the mass block; the lower spring group comprises a plurality of springs which are compressed and pre-tensioned between the lower cover plate and the mass block; the outer cylinder is sleeved outside the mass block, the upper end face of the outer cylinder is detachably connected with the upper cover plate, and the lower end face of the outer cylinder is detachably connected with the lower cover plate; the axial direction of the mass block is the vibration absorption direction. The distributed spring vibration absorber solves the problem of high transverse rigidity of the spring vibration absorber, and improves the energy absorption and vibration reduction effects of the energy absorption vibration absorber.
Description
Technical Field
The utility model belongs to the technical field of vibration noise control, and particularly relates to a distributed spring vibration absorber.
Background
The principle of operation of the absorber is to use its own resonance amplification to dissipate the vibration energy of the device. The actual equipment to be damped always has multidirectional vibration, so that the vibration modes of the vibration absorber in all directions can be excited, and the mode with lower frequency of the vibration absorber is easier to excite.
Since the radial stiffness of most springs is significantly less than the axial stiffness, the radial (transverse) natural frequency of the spring shock absorber is lower than the axial natural frequency. Therefore, there is often a problem with existing spring shock absorbers: the first-order vibration mode is radial, and the designed vibration absorption direction is axial, so that the energy absorption and vibration reduction effect of the spring vibration absorber is poor. In order to improve the energy absorption and vibration reduction effects of the spring vibration absorber, the spring vibration absorber should achieve a large transverse stiffness. The application publication number is CN 112576690A, the utility model application of a high-stability vibration absorber is named, more than three through holes are circumferentially arranged on the end face of a cylindrical mass component, a spring component is arranged in each through hole, each spring component comprises a guide rod, a positioning cylinder, a spring, a positioning pin, a positioning nut and a fastener, all parts are assembled on the guide rod according to the sequence of the positioning cylinder, the spring, the mass block, the spring, the positioning cylinder and the positioning nut, the axial vibration absorbing effect of the spring vibration absorber is improved to a certain extent, but because the spring is sleeved on the guide rod, the spring is required to have a larger spring inner diameter, and the number of springs arranged in the spring vibration absorber with a set size is reduced, so that the scheme still has difficulty in realizing the transverse high rigidity of the spring vibration absorber, and the axial energy absorbing vibration absorbing effect of the spring vibration absorber still needs to be improved.
Disclosure of Invention
In view of the above, the utility model provides a distributed spring vibration absorber, which solves the technical problem that the first-order vibration mode of the traditional spring vibration absorber is inconsistent with the designed vibration absorption direction, and improves the energy absorption and vibration reduction effects of the vibration absorber.
The distributed spring vibration absorber adopts the following technical scheme:
a distributed spring vibration absorber comprises a mass block, an upper cover plate, a lower cover plate, an upper spring set, a lower spring set and an outer cylinder;
the mass block is cylindrical;
the upper cover plate is covered at the upper end of the mass block;
the upper spring group comprises a plurality of springs which are compressed and pre-tensioned between the upper cover plate and the mass block;
the lower cover plate is covered at the lower end of the mass block;
the lower spring group comprises a plurality of springs which are compressed and pre-tensioned between the lower cover plate and the mass block;
the outer cylinder is sleeved outside the mass block, the upper end face of the outer cylinder is detachably connected with the upper cover plate, and the lower end face of the outer cylinder is detachably connected with the lower cover plate;
the axial direction of the mass block is the vibration absorption direction.
Further, a through hole is formed in the middle of the upper cover plate;
the upper end surface of the mass block is coaxially provided with an adjusting mass block;
one end of the adjusting mass block is detachably connected with the top end of the mass block, and the other end of the adjusting mass block penetrates through the through hole and extends upwards.
Further, the adjusting mass block comprises a plurality of round mass plates which are overlapped along the axial direction of the mass block.
Further, an upper cylindrical boss with the diameter smaller than that of the mass block is coaxially arranged on the upper end surface of the mass block;
the bottom of the adjusting mass block is detachably connected with the top of the upper cylindrical boss.
Further, the lower end face of the mass block is coaxially provided with a lower cylindrical boss with the diameter smaller than that of the mass block.
Further, the outer barrel comprises a first half barrel and a second half barrel;
the upper end faces of the first half cylinder and the second half cylinder are detachably connected with the upper cover plate, and the lower end faces of the first half cylinder and the second half cylinder are detachably connected with the lower cover plate.
Further, a connecting structure connected with the equipment to be damped is coaxially arranged on the lower end face of the lower cover plate;
and an external thread is arranged on the connecting structure.
Further, the connecting structure is also provided with a polygonal prism structure.
Further, the upper end face of the mass block is provided with a plurality of first limiting structures along the circumferential direction, and the lower end face of the mass block is provided with a plurality of second limiting structures along the circumferential direction;
the lower end surface of the upper cover plate is provided with third limit structures which are in one-to-one correspondence with the first limit structures;
the upper end surface of the lower cover plate is provided with fourth limit structures which are in one-to-one correspondence with the second limit structures;
the two ends of a spring in the upper spring group are compressed and pre-tensioned between the lower end face of the upper cover plate and the upper end face of the mass block through the first limiting structure and the third limiting structure respectively;
the two ends of the spring in the lower spring group are compressed and pre-tensioned between the upper end face of the lower cover plate and the lower end face of the mass block through the second limiting structure and the fourth limiting structure.
Further, the limiting structure is a counter bore.
The beneficial effects are that:
1. the upper spring group comprises a plurality of springs which are compressed and pre-tensioned between the lower end face of the upper cover plate and the upper end face of the mass block; the lower cover plate is covered at the lower end of the mass block; the lower spring group comprises a plurality of springs which are compressed and pre-tensioned between the upper end face of the lower cover plate and the lower end face of the mass block; the outer cylinder is sleeved outside the mass block, the upper end face of the outer cylinder is detachably connected with the upper cover plate, and the lower end face of the outer cylinder is detachably connected with the lower cover plate.
Therefore, through the design of the upper layer and the lower layer of the spring, the radial rigidity of the vibration absorber is larger than the axial rigidity, the low-order mode of the vibration absorber is consistent with the designed vibration absorption direction, the energy absorption and vibration reduction effects of the energy absorption vibration absorber are improved along the axial direction of the spring, and the gaps inside the vibration absorber only exist between the outer periphery of the outer cylinder and the mass block and the upper end surfaces and the lower end surfaces of the upper cover plate and the lower cover plate and the mass block, so that the gaps are smaller, namely the vibration absorber is compact in structure and high in space utilization rate. In addition, the springs in the vibration absorber are not sleeved outside the guide rods, so that the inner diameters of the springs can be small, the number of the springs which can be distributed can be increased, the springs are not limited by the size, the strength and the rigidity of the guide rods, the springs can be densely distributed, and the problem that the transverse rigidity of the vibration absorber is large is solved.
2. The up end coaxial of quality piece is provided with the regulation quality piece, and the one end of regulation quality piece is connected with the top of quality piece can be dismantled, and the other end passes the middle part through-hole of upper cover plate and upwards extends.
Therefore, the effective mass of the vibration absorber can be adjusted through adjusting the mass block, so that the external excitation frequency can be tracked, and when the natural frequency of the vibration absorber is equal to the external excitation frequency, the optimal energy absorption and vibration reduction effect can be realized.
3. The adjusting mass block comprises a plurality of round mass plates which are overlapped along the axial direction of the mass block. Thus, the tracking of the external excitation frequency can be realized by increasing or decreasing the number of the circular mass sheets without detaching the outer cylinder of the vibration absorber.
4. The upper end face of the mass block is coaxially provided with the upper cylindrical boss with the diameter smaller than the diameter of the mass block, the lower end face of the adjusting mass block is coaxially provided with the lower cylindrical boss with the diameter smaller than the diameter of the mass block, so that under the condition that the mass blocks with the same mass are needed, the space between the upper cover plate and the upper end face of the mass block and the space between the lower cover plate and the lower end face of the mass block are fully utilized, the diameter and the height of the mass block can be reduced, the gap inside the vibration absorber is reduced, and the space utilization rate of the vibration absorber is improved.
5. The urceolus includes first half section of thick bamboo and second half section of thick bamboo, and the up end of first half section of thick bamboo and second half section of thick bamboo all is connected with upper cover plate can be dismantled, and the lower terminal surface of first half section of thick bamboo and second half section of thick bamboo all is connected with lower cover plate can be dismantled. Therefore, the outer cylinder is formed through the two half cylinder structures, the upper spring group and the lower spring group can be assembled in the assembly process of the vibration absorber, and the outer cylinder is assembled again, so that the installation effect of the springs can be observed and guaranteed better, and the assembly quality of the vibration absorber is improved.
6. The polygonal prism structure arranged on the connecting structure can be conveniently meshed with the polygonal prism structure by using a wrench when the vibration absorber is connected with the equipment to be damped, and then the connecting structure is screwed with the equipment to be damped.
Drawings
FIG. 1 is a schematic diagram of a distributed spring vibration absorber according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the internal structure of the distributed spring vibration absorber of FIG. 1;
FIG. 3 is a schematic view of the structure of the mass of FIG. 1;
the device comprises a 1-mass block, a 101-first counter bore, a 2-upper cover plate, a 3-lower cover plate, 301-cylinders, 302-hexagonal prism structures, 4-spring groups, 5-outer cylinders, 501-first half cylinders, 502-second half cylinders, 6-upper cylinder bosses and 7-adjusting mass blocks.
Detailed Description
The utility model will now be described in detail by way of example with reference to the accompanying drawings.
Referring to fig. 1 to 3, a distributed spring vibration absorber includes a metallic mass block 1, an upper cover plate 2, a lower cover plate 3, a spring group 4, and an outer cylinder 5, wherein:
the mass block 1 is cylindrical, the upper end surface of the mass block 1 is provided with a plurality of first counter bores 101 which are used as a first limiting structure of a spring, and the lower end surface of the mass block 1 is provided with a plurality of second counter bores which are used as a second limiting structure of the spring;
the lower end surface of the upper cover plate 2 is provided with third counter bores corresponding to the first counter bores 101 one by one and used as a third limiting structure of the spring; the upper end surface of the lower cover plate 3 is provided with fourth counter bores corresponding to the second counter bores one by one and used as a fourth limiting structure of the spring; the upper cover plate 2 is covered at the upper end of the mass block 1, and an upper spring which is compressed and pre-tensioned is arranged between each first counter bore 101 and a third counter bore corresponding to the first counter bore, so that an upper spring group is formed; the limiting function is performed on the two ends of the spring through the first counter bore 101 and the third counter bore; the lower cover plate 3 covers the lower end of the mass block 1, a lower spring which is pre-tensioned by compression is arranged between each second counter bore and a fourth counter bore corresponding to the second counter bore, so that a lower spring group is formed, and the limiting effect of the second counter bores and the fourth counter bores on the two ends of the spring is achieved.
The outer cylinder 5 is of a cylindrical structure with an upper opening and a lower opening, the outer cylinder 5 is sleeved outside the mass block 1, the upper end face of the outer cylinder 5 is detachably connected with the upper cover plate 2, and the lower end face of the outer cylinder is detachably connected with the lower cover plate 3.
Therefore, through the coaxial distributed design of the upper spring group and the lower spring group, the radial stiffness of the springs is equivalently increased, and the radial stiffness of the vibration absorber can be larger than the axial stiffness, so that the low-order mode of the vibration absorber is consistent with the designed vibration absorption direction, and the energy absorption and vibration reduction effects of the vibration absorber are improved along the axial direction of the spring group 4 (comprising the upper spring group and the lower spring group). Moreover, the internal gap of the vibration absorber only exists between the outer circumference of the outer cylinder 5 and the mass block 1 and between the upper and lower cover plates and the upper and lower end faces of the mass block 1, and the gap is smaller, namely the vibration absorber has compact structure and high space utilization rate. In addition, the springs in the vibration absorber are not sleeved outside the guide rods, so that the inner diameters of the springs can be small, the number of the springs can be increased, the springs are not limited by the size, strength and rigidity of the guide rods due to the fact that the guide rods are not arranged, the springs can be arranged very densely, the problem that the transverse rigidity of the vibration absorber is large is solved, and the energy absorption and vibration reduction effects of the spring vibration absorber are improved. It should be noted that the upper spring group and the lower spring group in the vibration absorber are not limited by the coaxial, and can be respectively arranged on the upper end face and the lower end face according to the requirement, so that the transverse rigidity of the spring vibration absorber can be flexibly adjusted.
Further, a through hole is formed in the middle of the upper cover plate 2, an adjusting mass block 7 is coaxially arranged on the upper end face of the mass block 1, one end of the adjusting mass block 7 is detachably connected with the top end of the mass block 1 (in the embodiment, the adjusting mass block is connected with the top end of the mass block through a bolt), and the other end of the adjusting mass block extends upwards through the through hole. The adjusting mass 7 may be integrally formed or assembled, and preferably, the adjusting mass 7 includes a plurality of stacked circular mass plates along the axial direction of the mass 1, and the stacked circular mass plates are connected through bolts. Therefore, the effective mass of the vibration absorber can be adjusted through the adjusting mass block 7 so as to track the external excitation frequency, when the natural frequency of the vibration absorber is equal to the external excitation frequency, the optimal energy absorption and vibration reduction effect can be realized, and the external cylinder 5 of the vibration absorber can track the external excitation frequency by increasing and decreasing the number of the circular mass plates without disassembling the vibration absorber.
In addition, in the present embodiment, the lower end face of the lower cover plate 3 is coaxially provided with a cylinder 301 connected with the device to be damped, which serves as a connection structure, the outer periphery of the cylinder 301 is provided with threads, and the outer periphery of the end of the cylinder 301 close to the lower end face of the lower cover plate 3 is provided with a hexagonal prism structure 302, so that the vibration absorber can be connected with a slewing device such as a water pump through the cylinder 301, and when connected, the hexagonal prism structure 302 can be engaged with a wrench, thereby facilitating connection of the vibration absorber with the device to be damped.
As an improvement, the upper end surface of the mass block 1 is coaxially provided with an upper cylindrical boss 6 with a diameter smaller than that of the mass block 1, and the bottom end of the adjusting mass block 7 is detachably connected with the mass block 1 through being detachably connected with the top end of the upper cylindrical boss 6. The lower terminal surface coaxial of quality piece is provided with the lower cylinder boss that the diameter is less than the quality piece diameter, and when the upper cover plate 3 vibrates from top to bottom under in addition, the up end of lower cover plate 3 is not contacted with lower cylinder boss, so, under the condition of the quality piece of the same quality of needs, make full use of the space between up end 2 and the quality piece 1 up end, down cover plate 3 and the quality piece 1 down end, diameter and the height of quality piece 1 can be reduced, reduce the inside space of absorber, improve the space utilization of absorber.
As a further improvement, the outer cylinder 5 includes a first half cylinder 501 and a second half cylinder 502, upper end surfaces of the first half cylinder 501 and the second half cylinder 502 are both detachably connected with the upper cover plate 2, and lower end surfaces of the first half cylinder 501 and the second half cylinder 502 are both detachably connected with the lower cover plate 3.
The split type outer barrel 5 structure is adopted, and the assembly can be carried out according to the following steps:
step one: a spring is placed in a fourth counter bore of the upper end face of the lower cover plate 3 (the lower end of the spring is abutted with the fourth counter bore), and then a second counter bore of the lower end face of the mass block 1 is abutted with the upper end of the spring;
step two: a spring is placed in a first counter bore of the upper end face of the mass block 1 (the lower end of the spring is abutted with the first counter bore), and then a third counter bore of the lower end face of the upper cover plate 2 is abutted with the upper end of the spring;
step three: fixedly connecting the upper end surface of the first half cylinder 501 with an upper cover plate through bolts, and fixedly connecting the lower end surface of the first half cylinder 501 with a lower cover plate 3 through bolts;
step four: the upper end surface of the second half cylinder 502 is fixedly connected with the upper cover plate 2 through bolts, and the lower end surface of the second half cylinder 502 is fixedly connected with the lower cover plate 3 through bolts.
If a one-piece outer barrel 5 is used, the assembly is performed as follows:
step one: a spring is placed in a fourth counter bore of the upper end face of the lower cover plate 3 (the lower end of the spring is abutted with the fourth counter bore), and then a second counter bore of the lower end face of the mass block 1 is abutted with the upper end of the spring;
step two: the outer cylinder 5 is coaxially sleeved outside the mass block 1, and the lower end surface of the outer cylinder 5 is fixedly connected with the lower cover plate 3 through bolts;
step three: a spring is placed in a first counter bore of the upper end face of the mass block 1 (the lower end of the spring is abutted with the first counter bore 101), and then a third counter bore of the lower end face of the upper cover plate 2 is abutted with the upper end of the spring;
step four: the upper end surface of the outer cylinder 5 is fixedly connected with the upper cover plate 2 through bolts.
By comparing the above assembly steps, it can be found that: the outer cylinder 5 is designed into two split type half cylinder structures, compared with the integral outer cylinder 5, the vibration absorber can be assembled with the upper spring group and the lower spring group in the assembly process, and the outer cylinder 5 is assembled, so that the installation effect of the springs can be observed and guaranteed better, and the assembly quality of the vibration absorber is improved.
In addition, the vibration absorber has a metal structure, so that the vibration absorber is more resistant to high temperature and has a wider application range.
In summary, the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The distributed spring vibration absorber is characterized by comprising a mass block, an upper cover plate, a lower cover plate, an upper spring set, a lower spring set and an outer cylinder;
the mass block is cylindrical;
the upper cover plate is covered at the upper end of the mass block;
the upper spring group comprises a plurality of springs which are compressed and pre-tensioned between the upper cover plate and the mass block;
the lower cover plate is covered at the lower end of the mass block;
the lower spring group comprises a plurality of springs which are compressed and pre-tensioned between the lower cover plate and the mass block;
the outer cylinder is sleeved outside the mass block, the upper end face of the outer cylinder is detachably connected with the upper cover plate, and the lower end face of the outer cylinder is detachably connected with the lower cover plate;
the axial direction of the mass block is the vibration absorption direction.
2. The distributed spring vibration absorber according to claim 1, wherein a through hole is provided in a middle portion of the upper cover plate;
the upper end surface of the mass block is coaxially provided with an adjusting mass block;
one end of the adjusting mass block is detachably connected with the top end of the mass block, and the other end of the adjusting mass block penetrates through the through hole and extends upwards.
3. A distributed spring vibration absorber according to claim 2 wherein said adjustment mass comprises a plurality of circular mass plates stacked in the axial direction of the mass.
4. A distributed spring vibration absorber according to claim 3 wherein the upper end face of said mass is coaxially provided with an upper cylindrical boss having a diameter smaller than the diameter of said mass;
the bottom of the adjusting mass block is detachably connected with the top of the upper cylindrical boss.
5. A distributed spring vibration absorber according to claim 1 wherein the lower end face of the mass is coaxially provided with a lower cylindrical boss having a diameter smaller than the diameter of the mass.
6. The distributed spring vibration absorber of claim 1 wherein said outer cylinder comprises a first half cylinder and a second half cylinder;
the upper end faces of the first half cylinder and the second half cylinder are detachably connected with the upper cover plate, and the lower end faces of the first half cylinder and the second half cylinder are detachably connected with the lower cover plate.
7. The distributed spring vibration absorber according to claim 1, wherein a connecting structure connected with the equipment to be damped is coaxially arranged on the lower end face of the lower cover plate;
and an external thread is arranged on the connecting structure.
8. A distributed spring vibration absorber according to claim 7 wherein said connecting structure is further provided with a polygonal prismatic structure.
9. A distributed spring vibration absorber according to any one of claims 1 to 8 wherein the upper end face of the mass is provided with a plurality of first limit structures in the circumferential direction and the lower end face is provided with a plurality of second limit structures in the circumferential direction;
the lower end surface of the upper cover plate is provided with third limit structures which are in one-to-one correspondence with the first limit structures;
the upper end surface of the lower cover plate is provided with fourth limit structures which are in one-to-one correspondence with the second limit structures;
the two ends of a spring in the upper spring group are compressed and pre-tensioned between the lower end face of the upper cover plate and the upper end face of the mass block through the first limiting structure and the third limiting structure respectively;
the two ends of the spring in the lower spring group are compressed and pre-tensioned between the upper end face of the lower cover plate and the lower end face of the mass block through the second limiting structure and the fourth limiting structure.
10. The distributed spring vibration absorber of claim 9 wherein said spacing structure is a counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321842111.8U CN220726949U (en) | 2023-07-13 | 2023-07-13 | Distributed spring vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321842111.8U CN220726949U (en) | 2023-07-13 | 2023-07-13 | Distributed spring vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726949U true CN220726949U (en) | 2024-04-05 |
Family
ID=90495219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321842111.8U Active CN220726949U (en) | 2023-07-13 | 2023-07-13 | Distributed spring vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726949U (en) |
-
2023
- 2023-07-13 CN CN202321842111.8U patent/CN220726949U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109372943B (en) | Adjustable double-layer metal rubber damping shock absorber and working method thereof | |
| CN106369096B (en) | A kind of adjustable back pressure type disk spring damper of initial stiffness | |
| CN109723160B (en) | Self-resetting member based on parallel high-strength steel ring springs | |
| CN106382315B (en) | A kind of pull rod guide type spring-damper | |
| CN220726949U (en) | Distributed spring vibration absorber | |
| CN116517132A (en) | Length-adjustable self-resetting viscous damper | |
| CN210068829U (en) | Vibration isolator | |
| CN109403496B (en) | Friction mild steel composite damper and assembly method thereof | |
| CN215059134U (en) | Pre-stress annular tuned mass damper mounting structure for vibration reduction of fan tower | |
| CN116906482A (en) | Distributed spring vibration absorber | |
| CN106369095B (en) | A kind of disk spring damper that can adjust early stage rigidity | |
| CN106382319B (en) | A kind of disk spring damper of predeterminable early stage rigidity | |
| RU144800U1 (en) | Vibration Isolator | |
| CN109798324A (en) | A kind of damping device of high-power cryocooler cold head | |
| CN106437262A (en) | Disc-shaped spring damper with rigidity capable of being preset | |
| CN116241594A (en) | Tunable composite inertial damping shock absorber and preparation method thereof | |
| CN214945972U (en) | Integrated composite vibration isolator based on metal rubber | |
| CN106284732A (en) | A kind of rod-pulling type disk spring antivibrator of predeterminable early stage rigidity | |
| CN114254458A (en) | Design method of reciprocating compressor lamination coupling | |
| CN210049080U (en) | Rubber vibration-damping damper | |
| CN103016610A (en) | Three-direction metal rubber vibration isolator and array thereof | |
| CN210889918U (en) | Symmetrical cantilever rod type dynamic vibration absorber | |
| CN106286699A (en) | A kind of complex spring antivibrator of scalable rigidity in early days | |
| CN114370532A (en) | Variable-mass dynamic vibration absorber suitable for high-temperature pipeline and assembling method | |
| CN112648331B (en) | Asymmetric vibration reduction structure and assembling and adjusting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |