CN110212688A - A kind of particle damped vibration attenuation end cap and the main generator using the end cap - Google Patents
A kind of particle damped vibration attenuation end cap and the main generator using the end cap Download PDFInfo
- Publication number
- CN110212688A CN110212688A CN201910550255.8A CN201910550255A CN110212688A CN 110212688 A CN110212688 A CN 110212688A CN 201910550255 A CN201910550255 A CN 201910550255A CN 110212688 A CN110212688 A CN 110212688A
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- Prior art keywords
- end cap
- particle
- vacancy
- vibration attenuation
- damped vibration
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- 239000002245 particle Substances 0.000 title claims abstract description 57
- 238000013016 damping Methods 0.000 claims abstract description 41
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 239000003351 stiffener Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 210000004883 areola Anatomy 0.000 claims abstract description 5
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims 1
- 210000002435 tendon Anatomy 0.000 claims 1
- 239000002283 diesel fuel Substances 0.000 abstract description 6
- 238000011068 loading method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000003137 locomotive effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000002742 anti-folding effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The present invention is a kind of particle damped vibration attenuation end cap and the main generator using the end cap, and the main generator solved in current railroad diesel fuel generating set is conducted vulnerable to diesel vibration, and then influences the technical issues of bearing life is with operating normally.A kind of particle damped vibration attenuation end cap, end cap inside are fixed with around central shaft bearing bore and along the radially-arranged multiple stiffener plates of bearing hole, and stiffener plate will be divided into multiple spaces on the inside of end cap, and multiple spaces are spaced apart from each other as air inlet and vacancy；Multiple rectangle areolas are divided by the transverse slat of vertical interlaced and riser inside each vacancy, the rectangular enclosure horizontal direction spacing is identical and internal is filled with particle damping packet, the particle damping packet is diameter cylindrical cloth bag identical with rectangular enclosure horizontal direction spacing, and inside is filled with the 80% spherical steel ball that loading accounts for cloth bag height；Each vacancy is movably installed with the cover board to match with vacancy shape towards the side in end cap.
Description
Technical field
The present invention relates to the cushion technique of railroad diesel fuel generating set, specially a kind of particle damped vibration attenuation end cap
And the main generator using the end cap.
Background technique
In recent years, as railway systems continue to develop, diesel locomotive develops towards high-power integrated direction.Diesel generation
Core component of the unit as diesel locomotive, with the raising of power and revolving speed, vibration is consequently increased.In integrated bavin
In oily generating set, main generator is much smaller than diesel engine as power output device, resistance to vibrated ability.Therefore, master is reduced
The vibration of generator becomes the problem that current diesel locomotive faces.
Railroad diesel fuel generating set is mostly integrated morphology at present, and main generator is single-bearing support, end is driven to determine,
Rotor couples connection with diesel engine respectively, as shown in figure 11.Therefore the vibration of diesel engine is easy to conduction to main generator, especially
It is that the vibration of single-bearing support end is particularly evident, seriously affects the bearing life and normal operation of generator.Diesel generating set collection
How Cheng Hua reduces Generator Vibration, guarantees that stable operation of unit is the main problem for needing to solve at this stage.
On the inside of the structure chart of common generator's cover, as shown in Figure 12,13.Generator's cover includes end cap flange, end cap
It is disposed with stiffener plate around central axis bearing bore on flange, stiffener plate will be divided into multiple spaces on the inside of end cap, including be equipped with
The vacancy of side plate (being located at the side of end cap outwardly) and air inlet.
Summary of the invention
The present invention is that the main generator solved in current railroad diesel fuel generating set is conducted vulnerable to diesel vibration
And then the technical issues of influencing bearing life and operating normally, a kind of particle damped vibration attenuation end cap and the master using the end cap are provided
Generator.
A kind of particle damped vibration attenuation end cap of the present invention adopts the following technical scheme that realization: a kind of particle damping
Vibration damping end cap, end cap inside are fixed with around central shaft bearing bore and along the radially-arranged multiple stiffener plates of bearing hole, reinforce
Gusset will be divided into multiple spaces on the inside of end cap, and multiple spaces are spaced apart from each other as air inlet and vacancy；Inside each vacancy
Multiple rectangle areolas are divided by the transverse slat and riser of vertical interlaced, the rectangular enclosure horizontal direction spacing is identical and interior
Portion is filled with a particle damping packet, and the particle damping packet is diameter cylinder identical with rectangular enclosure horizontal direction spacing
Shape cloth bag, inside are filled with 80 ± 5% spherical steel ball that loading accounts for cloth bag height；Each vacancy is towards the side outside end cap
It is fixed with side plate, the cover board to match with vacancy shape is movably installed with towards the side in end cap.
The present invention takes full advantage of the space on the inside of end cap, and each vacancy is made to be divided into multiple squares by transverse slat and riser
Shape areola；A particle damping packet, the internal spherical steel ball energy loaded of particle damping packet are placed in each rectangular enclosure
Enough play the role of consuming vibrational energy.
Further, particle damping packet is formed using commercial nylon Oxford cloth and the wear-resisting sewer of high-tension.
The wear-resisting line of high-tension uses PE litzendraht wire or energetically horse line.
Commercial nylon Oxford cloth has the excellent mechanical properties such as tension, anti-folding, resistance to scraped finish, tear-proof, PE litzendraht wire or big
Power horse line is durable, greatly improves the service life of particle nylon cloth.
Particle damping packet accounts for the 1/3 of its diameter with side plate, riser, cover board contact local respectively, and there are gaps at four angles.This
When kind structure can guarantee that Generator Vibration is larger, steel ball can freely wriggle, phase mutual friction, to realize that vibrational energy dissipates.
Preferably, spherical steel ball loading accounts for the 85% of cloth bag height.The loadings are obtained by scientific algorithm and experiment
, optimal drop vibration effect can be played.
It forms the side of two stiffener plates and end cap outer ring in vacancy inwardly and is provided with screw hole, the cover board passes through spiral shell
Bolt and stiffener plate and end cap, which are realized, to be connected.
Cover board is to be flexibly connected, and is easily installed assembling particle damping packet.
Preferably, the stiffener plate is six, and vacancy is three, around end cap central bearing hole equidistantly distributed；
The height and spacing of rectangular enclosure are all equal.
A kind of particle damped vibration attenuation main generator of the present invention, including stator core assembly, bearing, exciter system
System, shaft, bracket, magnetic yoke and the end cap for being mounted on non-powered input terminal；End cap uses particle damped vibration attenuation end cap.
The present invention be directed to integrated diesel generating sets, to reduce its vibration, the novel main power generation of one kind developed
Machine.Generator's cover is designed as damping vibration attenuation structure, unit operation in, by the end cap can automatic absorption vibrational energy,
Slowing down vibration plays the role of reducing generator set vibration.It is mainly solving the technical problems that Generator Damping vibration damping end cap
Design, installation fixation, selection of critical material etc..
Advantageous effects of the invention:
1. the main generator devises a kind of particle energy-dissipation structure with flexible constraint characteristic, the particle being wrapped is made
It is collided in vibration processes with main structure for an entirety, generates biggish momentum-exchange.And due to the pact of flexible boundary
Beam exacerbates the collision friction effect between particle, to consume more vibrational energies.
2., using the dynamic regulation of particle damping packet vibration-damping function, can reach full when excitation energy is greater than certain level
The effectiveness in vibration suppression of meaning.The technology is applied on the electric motor end cap of diesel locomotive diesel generating set, realizes and reduce motor vibration
Dynamic purpose meets the service requirement of unit.
3. the successful development of the generator also may extend to traction electric machine or other industrial circles, there is wide application
Value.
Detailed description of the invention
The structural schematic diagram of particle damping packet is not placed on the inside of Fig. 1 end cap of the present invention.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
The schematic view of the front view of Fig. 3 particle damping packet.
Fig. 4 is the A direction view of Fig. 3.
Fig. 5 places the end cap inside structure schematic diagram after particle damping packet.
Fig. 6 is the A-A cross-sectional view of Fig. 5.
Fig. 7 is damping end cap machining sketch chart.
Damping vibration attenuation end cap schematic diagram after the installation of Fig. 8 cover board.
Fig. 9 is the A-A cross-sectional view of Fig. 8.
Figure 10 particle damping packet and each plate contact condition schematic diagram (the B-B cross-sectional view of Fig. 9).
Figure 11 diesel-driven generator forms structural schematic diagram.
The existing generator's cover inside structure figure of Figure 12.
Figure 13 is the sectional view of Figure 12.
1- diesel oil machine stator, 2- diesel oil machine rotor, 3- stator core assembly, 4- end cap, 5- bearing, 6- exciter system,
7- shaft, 8- bracket, 9- magnetic yoke, 10- stiffener plate, 11- side plate, 12- end cap flange, 13- air inlet, 14- transverse slat, 15- are perpendicular
Plate, 16- commercial nylon Oxford cloth, 17- spherical shape steel ball, 18- particle damping packet, 19- screw hole, 20- cover board, 21- bolt.
Specific embodiment
Three vacancy on the inside of the generator's cover between six stiffener plates 10, a plurality of cavities that design is separated out with baffle
Transverse slat 14 and 15 points of riser, are welded in the side plate 11 and reinforcing rib of end cap by (most of is rectangle, and also there are other shapes in edge)
Between plate 10.The spacing and height of each plate are equal, and direction is also both designed as vertical direction.As shown in Figure 1, 2.
The commercial nylon Oxford cloth 16 for having the excellent mechanical properties such as tension, anti-folding, resistance to scraped finish, tear-proof is selected, then is made
With the wear-resisting line of high-tension (PE litzendraht wire or energetically horse line), it is sewn into cylindrical cloth bag, the spacing of cloth bag diameter and riser 15
Keep identical.
By spherical 17 particle of steel ball in cloth bag, loading accounts for about the 85% of height space, and then sewing sealing, is made
Particle damping packet 18.As shown in Figure 3,4.
In the cuboid cavity that particle damping packet 18 is placed on the inside of end cap with partition formation, whole vertical directions are put
It sets, at totally three.Damping take all of week with each riser 15 and side plate 11 closely, bottom is contacted with transverse slat 14.As shown in Figure 5,6.
On the end face of end cap flange 12 and stiffener plate 10, difference processing screw hole 19.As shown in Figure 7.
Conformal cover board 20 is designed, then is fastened on end cap with bolt 21.The close of particle damping packet 18 had both been realized in this way
Sealing is fixed, and detachable and interchangeable, easy access.As shown in Figure 8,9.
Particle damping packet 18 is as shown in Figure 10 with each plate contact condition B-B section view in end cap 4.Damping packet respectively with bottom plate
11, riser 15, cover board 20 contact local and account for its diameter about 1/3, and there are gaps at four angles, it is therefore an objective to larger in Generator Vibration
When, steel ball can freely wriggle, phase mutual friction, to realize that vibrational energy dissipates.
Key problem in technology point of the invention:
The characteristic of energy dissipation may be implemented in grain structure with flexible constraint, is applied to generator vibration reduction for the first time；
Using the confined space of main generator, rationally designs particle and damp packet vibration damping end cap, not only met the runnability of motor, but also
Satisfied vibration damping purpose can be reached.
Protection point of the invention:
1, the cavity body for the sizes such as multiple that design partition forms on main generator end cap；
2, the commercial nylon Oxford cloth of the function admirables such as tensile wear-resistant is selected, and cylinder type is made with the wear-resisting linear slit of high strength tension
Cloth bag；
3, steel ball particle is fitted into cylinder-shaped cloth bag, short transverse fills the 80% of its space, makes steel ball can be certainly in cloth bag
It is rubbed by wriggling, then sewing sealing, particle damping packet is made；
4, particle damping packet filling is placed in each cavity body designed on main generator end cap；
5, it designs conformal cover board to cover the end cap cavity area for placing particle damping packet, blending bolt fit sealing；
6, particle damping packet contacts about 1/3 length of its diameter with each plate of electric motor end cap cavity body, and surrounding volume does not contact, convenient for resistance
Steel ball in Buddhist nun's packet can freely wriggle friction, realize vibrational energy dissipation.
Claims (10)
1. a kind of particle damped vibration attenuation end cap, it is fixed on the inside of end cap around central shaft bearing bore and radially-arranged along bearing hole
Multiple stiffener plates (10), stiffener plate (10) will be divided into multiple spaces on the inside of end cap, multiple spaces be spaced apart from each other as into
Air port (13) and vacancy；It is characterized in that, being divided by the transverse slat of vertical interlaced (14) and riser (15) inside each vacancy
At multiple rectangular enclosures, the rectangular enclosure horizontal direction spacing it is identical and it is internal be filled with particle damping packet (18),
The particle damping packet (18) is diameter cylindrical cloth bag identical with rectangular enclosure horizontal direction spacing, and inside is filled with filling
Amount accounts for 80 ± 5% spherical steel ball (17) of cloth bag height；Each vacancy is being fixed with side plate (11), court towards the side outside end cap
Side in end cap is movably installed with the cover board (20) to match with vacancy shape.
2. a kind of particle damped vibration attenuation end cap as described in claim 1, which is characterized in that particle damping packet (18) is using industry
Nylon Oxford cloth (16) and the wear-resisting sewer of high-tension form.
3. a kind of particle damped vibration attenuation end cap as claimed in claim 2, which is characterized in that the wear-resisting line of high-tension is compiled using PE
Knit line or energetically horse line.
4. such as a kind of described in any item particle damped vibration attenuation end caps of claim 1 ~ 3, which is characterized in that particle damping packet (18)
The 1/3 of its diameter is accounted for side plate (11), riser (15), cover board (20) contact area respectively, there are gaps at four angles.
5. such as a kind of described in any item particle damped vibration attenuation end caps of claim 1 ~ 3, which is characterized in that spherical steel ball (17) is filled out
Charge accounts for the 85% of cloth bag height.
6. such as a kind of described in any item particle damped vibration attenuation end caps of claim 1 ~ 3, which is characterized in that form two of vacancy
The side of stiffener plate (10) and end cap outer ring inwardly is provided with screw hole (19), and the cover board (20) is by bolt (21) and adds
Strengthening tendons plate (10) and end cap realize connection.
7. a kind of particle damped vibration attenuation end cap as claimed in claim 4, which is characterized in that form two stiffener plates in vacancy
(10) and end cap outer ring side inwardly is provided with screw hole (19), and the cover board (20) passes through bolt (21) and stiffener plate
(10) and end cap realizes connection.
8. such as a kind of described in any item particle damped vibration attenuation end caps of claim 1 ~ 3, which is characterized in that the stiffener plate
It (10) is six, vacancy is three, around end cap central bearing hole equidistantly distributed；Transverse slat (14) and riser (15) point are welded in
Between the side plate (11) and stiffener plate (10) of end cap；The height and spacing for installing the rectangle areola of particle damping packet (18) are all
It is equal.
9. a kind of particle damped vibration attenuation end cap as claimed in claim 4, which is characterized in that the stiffener plate (10) is six
A, vacancy is three, around end cap central bearing hole equidistantly distributed；Transverse slat (14) and riser (15) point are welded in the side of end cap
Between plate (11) and stiffener plate (10)；Height and the spacing for installing the rectangle areola of particle damping packet (18) are all equal.
10. a kind of particle damped vibration attenuation main generator, including stator core assembly (3), bearing (5), exciter system (6), turn
Axis (7), bracket (8), magnetic yoke (9) and the end cap (4) for being mounted on non-powered input terminal；It is characterized in that, end cap (4) is using such as
Particle damped vibration attenuation end cap described in claim 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910550255.8A CN110212688B (en) | 2019-06-24 | 2019-06-24 | Particle damping vibration attenuation end cover and main generator adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910550255.8A CN110212688B (en) | 2019-06-24 | 2019-06-24 | Particle damping vibration attenuation end cover and main generator adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110212688A true CN110212688A (en) | 2019-09-06 |
| CN110212688B CN110212688B (en) | 2020-12-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910550255.8A Active CN110212688B (en) | 2019-06-24 | 2019-06-24 | Particle damping vibration attenuation end cover and main generator adopting same |
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| Country | Link |
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| CN (1) | CN110212688B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779793A (en) * | 2020-06-18 | 2020-10-16 | 中车永济电机有限公司 | Impact damping device and main generator with same |
| CN111828259A (en) * | 2020-07-24 | 2020-10-27 | 黑龙江省绿地生物科技开发有限公司 | Multi-directional power generation device |
| CN113251498A (en) * | 2021-05-27 | 2021-08-13 | 珠海格力电器股份有限公司 | End cover vibration reduction assembly, compressor and air conditioner |
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| CN208112373U (en) * | 2018-04-03 | 2018-11-16 | 上海电器科学研究所（集团）有限公司 | An End Cover Structure for Reducing Vibration and Noise of Small and Medium-sized Motor Bearings |
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| JPH06105499A (en) * | 1992-09-24 | 1994-04-15 | Toshiba Corp | Bearing bracket for rotating machinery |
| JP2007040515A (en) * | 2005-03-08 | 2007-02-15 | Sekisui Chem Co Ltd | Vibration control structure of vibrating body, and its manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779793A (en) * | 2020-06-18 | 2020-10-16 | 中车永济电机有限公司 | Impact damping device and main generator with same |
| CN111779793B (en) * | 2020-06-18 | 2022-02-18 | 中车永济电机有限公司 | Impact damping device and main generator with same |
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| CN113251498A (en) * | 2021-05-27 | 2021-08-13 | 珠海格力电器股份有限公司 | End cover vibration reduction assembly, compressor and air conditioner |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110212688B (en) | 2020-12-25 |
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