CN204387203U - Bran finisher double tunning mass damper and compound subtract isolation mounting - Google Patents
Bran finisher double tunning mass damper and compound subtract isolation mounting Download PDFInfo
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- CN204387203U CN204387203U CN201520018092.6U CN201520018092U CN204387203U CN 204387203 U CN204387203 U CN 204387203U CN 201520018092 U CN201520018092 U CN 201520018092U CN 204387203 U CN204387203 U CN 204387203U
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- cantilever beam
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- mass damper
- isolation
- vibration
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Abstract
The utility model relates to a kind of bran finisher double tunning mass damper, compound subtracts isolation mounting, and tuned mass damper is made up of double cantilever beam and the tuning quality block being located at double cantilever beam two ends; Meet and subtract isolation mounting and be made up of vibrating isolation system and tuned mass damper, vibrating isolation system is made up of rubber vibration isolator, vibration isolation steel plate and steel spring vibration isolator.Two overhangs that the stiffness elements of this double tunning mass damper adopts are as a whole, share a fixed end, and formation middle part is fixing, the assembly structure of two ends cantilever, forms the multiple tuned mass dampers system of a pair frequency interval distribution; The rubber that this compound subtracts isolation mounting carries out a vibration isolation every vibration isolator to bran finisher, then adopt steel spring vibration isolator to top overall structure two-stage vibration isolation, further obstruct vibrational energy is to the transmission of floor, finally adopt the further energy-obsorbing and damping of tuned mass damper, vibration damping layer by layer, Be very effective.
Description
Technical field
The utility model relates to a kind of bran finisher double tunning mass damper and compound subtracts isolation mounting, belongs to equipment vibration isolation technique field.
Background technique
One of visual plant of Da Branjishi flour mill industrialized production, material is under the adjustable strike that re-packs of High Rotation Speed, bran flakes is thrown to cushion plate and elasticity is sieved, under the repeatedly effect re-packed, flour is separated from bran flakes, the rotor speed that re-packs is 1000 ~ 1100r/min, and corresponding actual motion frequency is generally between 16Hz ~ 19Hz.And the vertical natural frequency of vibration of the single order of industrial premises floor is generally between 15Hz ~ 20Hz, just interval overlapping with the operation frequency of making Bran machine, very easily there is coupled vibrations, cause the dither of floor.Vibration of floor both on fatigue life of mill-type construction and equipment with normally use larger impact, also reduce the travelling comfort of staff.The solution that current industrial quarters mainly adopts installs isolation mounting beating between Bran machine and floor, to reduce the magnitude of vibrations that equipment passes to floor, and slackens the coupled vibrations between equipment and floor.
In order to solve the poor problem of single vibration isolation efficiency, have researcher to propose to carry out two-stage vibration isolation structure or repeatedly vibration isolation to equipment, namely a vibration insulation structure is placed and is superimposed upon on another vibration insulation structure, or on multiple vibration insulation structure.But also existence is a lot of not enough: equipment vibration isolation substrate height increases, and easily causes equipment crank, easily twists in work, bias; The natural frequency of multiple vibration isolator does not strictly stagger, and still can produce resonance phenomenon.
Chinese invention patent, application number is 201210000184.2, disclosed a kind of equipment vibration isolation substrate, be made up of upper vibration insulation structure, lower vibration insulation structure and damping snubber, upper vibration insulation structure is made up of supporting steel plate, upper rigid block and upper vibration isolator, lower vibration insulation structure is made up of lower rigid block, middle supporting steel plate, lower support steel plate and lower vibration isolator, during upper rigid block embeds between supporting steel plate and lower support steel plate, forms tandem compound.This vibro-damping mount needs very large rigid block, adds the associated mass of equipment, and vibration insulation structure is installed loaded down with trivial details, and the later stage is also inconvenient to the maintenance of vibration insulation structure, is unfavorable for the application of making this kind of low value industry equipment of Bran machine, is expected to apply at high precise equipment.
Application number is the Chinese invention patent of 201110057599.9, a kind of little mass ratio damping structure and implementation method are disclosed, specifically a kind of single-layer partiting polarization and dynamic vibration absorber subtract vibration isolating method, the single-point absorbing of equipment can be realized, but cannot suppression equipment start, dwell period, the vibration during work of even non-rated power.In addition, dynamic vibration absorber is directly installed on working equipment by this patent, compared with the unstable vibration of skinny device, can only cannot realize the isolation being delivered to vibration of floor energy.
In addition, tradition vibration insulation structure only has very little damping even not have damping, equipment is in startup, closing process, operating frequency overlaps with the natural frequency of vibration insulation structure always, at this in a flash, system resonates, although overlap time generally can not oversize and cause structure to occur diversity vibrates, but also may reach higher value, be unfavorable for the long-term normal work of equipment.
Summary of the invention
The deficiency that the utility model exists for prior art and defect, provide a kind of and adopt vibrating isolation system two-stage vibration isolation, bran finisher double tunning mass damper that tuned mass damper energy-obsorbing and damping combines and compound subtract isolation mounting.
For achieving the above object, the technological scheme that the utility model adopts is: a kind of bran finisher double tunning mass damper, comprises double cantilever beam and tuning quality block, and described tuning quality block is located at double cantilever beam two ends.
In above-mentioned bran finisher double tunning mass damper structure, the waist shaped hole arranged along double cantilever beam length direction is offered at described double cantilever beam two ends respectively; Tuning quality block is arranged on double cantilever beam two free end by bolt assembly, and bolt through tuning quality block and waist shaped hole, and passes through nut check.
In above-mentioned bran finisher double tunning mass damper structure, described assembly structure is that middle part is fixed, the double cantilever beam of two ends cantilever; The length direction center line of waist shaped hole overlaps with double cantilever beam length direction medial axis.
A kind of bran finisher compound containing above-mentioned bran finisher double tunning mass damper subtracts isolation mounting, also comprise vibrating isolation system, described vibrating isolation system is made up of rubber vibration isolator, vibration isolation steel plate and steel spring vibration isolator, described vibration isolation upper surface of steel plate installs rubber vibration isolator, its bottom surface is provided with steel spring vibration isolator, and described rubber vibration isolator is located at the base plate corner place of bran finisher; Tuned mass damper is located at vibration isolation steel plate two ends, and is symmetrical arranged along vibration isolation plate centre line.Preferably, conveniently finely tune and slacken equipment to tuned mass damper due to the higher contingent vertical torsional vibration of center of gravity, avoid device fails, tuned mass damper is positioned at the outside of bran finisher or the marginal position of bran finisher.
Subtract in isolation mounting structure in above-mentioned bran finisher compound, described double tunning mass damper comprises double cantilever beam and tuning quality block, waist shaped hole is offered respectively in described double cantilever beam two ends, and the length direction center line of described waist shaped hole overlaps with double cantilever beam length direction medial axis; Tuning quality block is arranged on double cantilever beam two free end by bolt assembly, and bolt through tuning quality block and waist shaped hole, and passes through nut check.
Subtract in isolation mounting structure in above-mentioned bran finisher compound, described double tunning mass damper is arranged on vibration isolation steel plate by high-strength bolt, and described high-strength bolt lower end through being opened in the waist shaped hole offered in the middle part of double cantilever beam, and is screwed in vibration isolation steel plate.
Subtract in isolation mounting structure in above-mentioned bran finisher compound, be provided with cushion block between described double cantilever beam and vibration isolation steel plate, cushion block is sleeved on high-strength bolt bar.
Subtract in isolation mounting structure in above-mentioned bran finisher compound, described steel spring vibration isolator contains upper and lower casing and is located at the steel spring in upper and lower casing, upper casing is fixed on vibration isolation steel plate, and lower casing is embedded in the groove that is opened on base, and described base is fixed on floor.Preferably, described steel spring vibration isolator is positioned at the outside of rubber vibration isolator, and both settings adjacent to each other, namely both axis are close to each other, but not on same straight line, due to the rubber vibration isolator of upper strata vibration isolation and both steel spring vibration isolators axis of lower floor's vibration isolation close, the moment of flexure suffered by vibration isolation steel plate is negligible, stressed very little.
The beneficial effects of the utility model are:
1, the tuning quality block of the utility model bran finisher double tunning mass damper is arranged on double cantilever beam by bolt assembly and waist shaped hole, can by the position of adjustment tuning quality block, realize the fine setting of tuned mass damper frequency, thus realize multiple tuned mass dampers system, avoid traditional single-point vibration isolation, vibration isolation range widens, vibration isolating effect is more obvious.And offer waist shaped hole in the middle part of double cantilever beam, can increase according to designing requirement, widen double cantilever beam, realize variation rigidity overhang, meanwhile, between double cantilever beam and vibration isolation steel plate, be provided with cushion block, prevent two cantilevers of double cantilever beam from touching vibration isolation steel plate and cause secondary vibration.
2, two overhangs of the stiffness elements employing of the utility model tuned mass damper are as a whole, share a fixed end, formation middle part is fixing, the assembly structure of two ends cantilever, by adjusting the frequency of the fixed position adjustment tuned mass damper of anchor bolt, device is compact, and adjustment succinctly facilitates; When two overhang length are identical, corresponding tuned mass damper frequency is completely equal, behind the fixed position of adjustment anchor bolt, a tuned mass damper frequency increases a little, another tuned mass damper frequency reduces a little, just forms the multiple tuned mass dampers system of a pair frequency interval distribution.
3, the utility model bran finisher compound subtract isolation mounting rubber every vibration isolator under the enough rigidity conditions of guarantee, first time vibration isolation is carried out to bran finisher, then adopt steel spring vibration isolator to top overall structure two-stage vibration isolation, further obstruct vibrational energy is to the transmission of floor, finally adopt the further energy-obsorbing and damping of double tunning mass damper, vibration damping layer by layer, Be very effective.
4, the double tunning mass damper that the utility model model utility bran finisher compound subtracts isolation mounting is located at the two ends of vibration isolation steel plate, the equipment that can effectively slacken is due to the higher contingent vertical torsional vibration of center of gravity, avoid device fails, the working life of extension device.
5, the utility model compound subtract the structure of isolation mounting simple, reasonable in design, be convenient to make, be easy to install, be convenient to later maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model bran finisher double tunning mass damper;
Fig. 2 is the linkage structure schematic diagram of the utility model bran finisher double tunning mass damper and vibration isolation steel plate;
Fig. 3 is the main TV structure schematic diagram that the utility model bran finisher compound subtracts isolation mounting;
Fig. 4 is the side-looking structural representation that the utility model bran finisher compound subtracts isolation mounting;
Fig. 5 is the structure for amplifying schematic diagram of A in Fig. 4;
Fig. 6 is the plan structure schematic diagram that the utility model bran finisher compound subtracts isolation mounting.
The meaning of number in the figure representative is: 1, bran finisher, 2, rubber vibration isolator, 3, vibration isolation steel plate, 4, tuned mass damper, 5, steel spring vibration isolator, 6, floor, 7, casing, 8, base, 9, bolt a, 10, bolt b, 11, bolt and nut c, 12, high-strength bolt, 13, cushion block, 14, double cantilever beam, 15, waist shaped hole, 16, bolt and nut d, 17, tuning quality block, 18, waist shaped hole.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
Embodiment 1: see Fig. 1 and Fig. 2, and a kind of bran finisher double tunning mass damper, comprises double cantilever beam 14 and tuning quality block 17, and described tuning quality block 17 is located at double cantilever beam 14 two ends.
In above-mentioned bran finisher double tunning mass damper structure, the waist shaped hole 15 arranged along double cantilever beam length direction is offered at described double cantilever beam 14 two ends respectively; Described tuning quality block 17 is arranged on double cantilever beam 17 liang of free ends by bolt and nut d, and bolt through tuning quality block 17 and waist shaped hole 15, and passes through nut check.
In above-mentioned bran finisher double tunning mass damper structure, described assembly structure is that middle part is fixed, the double cantilever beam of two ends cantilever; The length direction center line of waist shaped hole overlaps with double cantilever beam length direction medial axis.
Embodiment 2: see Fig. 3 to Fig. 6, a kind of bran finisher compound containing the above-mentioned bran finisher double tunning mass damper stated subtracts isolation mounting, also comprise vibrating isolation system, described vibrating isolation system is made up of rubber vibration isolator, vibration isolation steel plate and steel spring vibration isolator, described vibration isolation upper surface of steel plate installs rubber vibration isolator, its bottom surface is provided with steel spring vibration isolator, and described rubber vibration isolator is located at the base plate corner place of bran finisher; Double tunning mass damper is located at vibration isolation steel plate two ends, and is symmetrical arranged along vibration isolation plate centre line.Preferably, conveniently finely tune and slacken equipment to tuned mass damper due to the higher contingent vertical torsional vibration of center of gravity, avoid device fails, tuned mass damper is positioned at the outside of bran finisher or the marginal position of bran finisher.
Subtract in isolation mounting structure in above-mentioned bran finisher compound, described double tunning mass damper comprises double cantilever beam and tuning quality block, waist shaped hole is offered respectively in described double cantilever beam two ends, and the length direction center line of described waist shaped hole overlaps with double cantilever beam length direction medial axis; Described tuning quality block is arranged on double cantilever beam two free end by bolt assembly, and bolt through tuning quality block and waist shaped hole, and passes through nut check.
Subtract in isolation mounting structure in above-mentioned bran finisher compound, described double tunning mass damper is arranged on vibration isolation steel plate by high-strength bolt, and described high-strength bolt lower end through being opened in the waist shaped hole offered in the middle part of double cantilever beam, and is screwed in vibration isolation steel plate.
Subtract in isolation mounting structure in above-mentioned bran finisher compound, be provided with cushion block between described double cantilever beam and vibration isolation steel plate, cushion block is sleeved on high-strength bolt bar.
Subtract in isolation mounting structure in above-mentioned bran finisher compound, described steel spring vibration isolator contains upper and lower casing and is located at the steel spring in upper and lower casing, upper casing is fixed on vibration isolation steel plate, and lower casing is embedded in the groove that is opened on base, and described base is fixed on floor.Preferably, described steel spring vibration isolator is positioned at the outside of rubber vibration isolator, and both settings adjacent to each other, namely both axis are close to each other, but not on same straight line, due to the rubber vibration isolator of upper strata vibration isolation and both steel spring vibration isolators axis of lower floor's vibration isolation close, the moment of flexure suffered by vibration isolation steel plate is negligible, stressed very little.
Claims (8)
1. a bran finisher double tunning mass damper, comprises double cantilever beam and tuning quality block, it is characterized in that: described tuning quality block is located at double cantilever beam two ends.
2. bran finisher double tunning mass damper according to claim 1, is characterized in that: the waist shaped hole arranged along double cantilever beam length direction is offered at described double cantilever beam two ends respectively; Tuning quality block is arranged on double cantilever beam two free end by bolt assembly, and bolt through tuning quality block and waist shaped hole, and passes through nut check.
3. bran finisher double tunning mass damper according to claim 1, is characterized in that: described assembly structure is that middle part is fixed, the double cantilever beam of two ends cantilever; The length direction center line of waist shaped hole overlaps with double cantilever beam length direction medial axis.
4. the bran finisher compound containing the bran finisher double tunning mass damper described in any one of claims 1 to 3 claim subtracts isolation mounting, it is characterized in that: also comprise vibrating isolation system, described vibrating isolation system is made up of rubber vibration isolator, vibration isolation steel plate and steel spring vibration isolator, described vibration isolation upper surface of steel plate installs rubber vibration isolator, its bottom surface is provided with steel spring vibration isolator, and described rubber vibration isolator is located at the base plate corner place of bran finisher; Double tunning mass damper is located at vibration isolation steel plate two ends, and is symmetrical arranged along vibration isolation plate centre line.
5. bran finisher compound according to claim 4 subtracts isolation mounting, it is characterized in that: described double tunning mass damper comprises double cantilever beam and tuning quality block, waist shaped hole is offered respectively in described double cantilever beam two ends, and the length direction center line of described waist shaped hole overlaps with double cantilever beam length direction medial axis; Tuning quality block is arranged on double cantilever beam two free end by bolt assembly, and bolt through tuning quality block and waist shaped hole, and passes through nut check.
6. bran finisher compound according to claim 4 subtracts isolation mounting, it is characterized in that: described double tunning mass damper is arranged on vibration isolation steel plate by high-strength bolt, described high-strength bolt lower end through being opened in the waist shaped hole offered in the middle part of double cantilever beam, and is screwed in vibration isolation steel plate.
7. bran finisher compound according to claim 6 subtracts isolation mounting, it is characterized in that: be provided with cushion block between described double cantilever beam and vibration isolation steel plate, cushion block is sleeved on high-strength bolt bar.
8. bran finisher compound according to claim 4 subtracts isolation mounting, it is characterized in that: described steel spring vibration isolator contains upper and lower casing and is located at the steel spring in upper and lower casing, upper casing is fixed on vibration isolation steel plate, lower casing is embedded in the groove that is opened on base, and described base is fixed on floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018092.6U CN204387203U (en) | 2015-01-12 | 2015-01-12 | Bran finisher double tunning mass damper and compound subtract isolation mounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018092.6U CN204387203U (en) | 2015-01-12 | 2015-01-12 | Bran finisher double tunning mass damper and compound subtract isolation mounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387203U true CN204387203U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520018092.6U Withdrawn - After Issue CN204387203U (en) | 2015-01-12 | 2015-01-12 | Bran finisher double tunning mass damper and compound subtract isolation mounting |
Country Status (1)
| Country | Link |
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| CN (1) | CN204387203U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565192A (en) * | 2015-01-12 | 2015-04-29 | 华北水利水电大学 | Bran finisher double-turned mass dampers, combined vibration reduction and isolation device and implementation method |
| CN110725888A (en) * | 2019-10-22 | 2020-01-24 | 荆州介太科技有限公司 | IMU lever vibration damper and method thereof |
| CN111365399A (en) * | 2020-04-15 | 2020-07-03 | 国网(西安)环保技术中心有限公司 | Adjustable portable dynamic vibration absorber and operation method thereof |
| CN114941688A (en) * | 2022-06-16 | 2022-08-26 | 广东美芝精密制造有限公司 | Vibration isolation assembly, compressor device, electrical equipment and vehicle |
-
2015
- 2015-01-12 CN CN201520018092.6U patent/CN204387203U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565192A (en) * | 2015-01-12 | 2015-04-29 | 华北水利水电大学 | Bran finisher double-turned mass dampers, combined vibration reduction and isolation device and implementation method |
| CN110725888A (en) * | 2019-10-22 | 2020-01-24 | 荆州介太科技有限公司 | IMU lever vibration damper and method thereof |
| CN110725888B (en) * | 2019-10-22 | 2021-05-11 | 荆州介太科技有限公司 | IMU lever vibration damper and method thereof |
| CN111365399A (en) * | 2020-04-15 | 2020-07-03 | 国网(西安)环保技术中心有限公司 | Adjustable portable dynamic vibration absorber and operation method thereof |
| CN114941688A (en) * | 2022-06-16 | 2022-08-26 | 广东美芝精密制造有限公司 | Vibration isolation assembly, compressor device, electrical equipment and vehicle |
| CN114941688B (en) * | 2022-06-16 | 2023-11-21 | 广东美芝精密制造有限公司 | Vibration isolation assembly, compressor device, electrical equipment and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150610 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |