CN102102722B - Rub-impact damping protection device for high-speed rotating machinery - Google Patents
Rub-impact damping protection device for high-speed rotating machinery Download PDFInfo
- Publication number
- CN102102722B CN102102722B CN2011100385496A CN201110038549A CN102102722B CN 102102722 B CN102102722 B CN 102102722B CN 2011100385496 A CN2011100385496 A CN 2011100385496A CN 201110038549 A CN201110038549 A CN 201110038549A CN 102102722 B CN102102722 B CN 102102722B
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- slide block
- cover plate
- bulb
- shell
- bump
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Abstract
The invention discloses a rub-impact damping protection device for a high-speed rotating machinery, comprising an upper cover plate, a lower cover plate, a housing, a slide block, a rub-impact ball head and a metal rubber ring, wherein both the housing and the slide block are ring-shaped; an upper through hole is arranged at the middle part of the upper cover plate; a lower through hole is arranged at the middle part of the lower cover plate; the upper end of the housing is fixedly connected with the upper cover plate; the lower end of the housing is fixedly connected with the lower cover plate; the slide block is arranged in the housing and is embed between the upper cover plate and the lower cover plate; a gap is reserved between the slide block and the housing; the metal rubber ring is placed in the gap; the rub-impact ball head is arranged on the inner wall of the slide block; the head part of the rub-impact ball head is toward the axis of the slide block; and the distance from the head part of the rub-impact ball head to the axis is respectively less than the radius of the upper through hole and the radius of the lower through hole. When playing a limit role on the rotation of a rotor, the rub-impact damping protection device with the structure also has a performance of strong damping effect and is beneficial to enhancing the safety of the operation of a rotor system.
Description
Technical field
The invention belongs to the component of machine technical field, specifically, relate to a kind of be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear.
Background technique
In recent years, along with developing rapidly of nuclear industry, aviation industry, power industry, shipping industry, field of petrochemical industry, various rotating machineries such as centrifuge, turbo machine, accumulated energy flywheel, develop towards directions such as high speed, high power to weight ratio.In the running of rotor-support-foundation system, when the influence that receives external excitation, rotor vibration exceeding the standard occurs or the motion unstable phenomenon happens occasionally, if do not control, very easily causes catastrophic failure.At present, exceed standard or the generation of motion unstable phenomenon for fear of rotor oscillation, a way of employing is in rotor-support-foundation system, to introduce the friction protective gear.The friction protective gear can be divided into two types: one type is the sliding friction protective gear: by the stop collar that teflon, graphite or bronze are made, stop collar is fixed on stator, and rotor is arranged in stop collar, and leaves certain interval between rotor and the stop collar.Stop collar mainly plays certain position limitation protection effect.Owing to lack damping member in the stop collar, rotor is difficult for getting back to fast the equilibrium position.The life-span of the friction ring on the stop collar is shorter in addition; Another kind of is the rolling friction protective gear: the rolling bearing that this device is promptly commonly used.Rolling bearing can play position-limiting action, and can solve wear problem, but since damping effect a little less than, so the damping effect that rubs of crashing is very limited.
Summary of the invention
Technical problem:Technical problem to be solved by this invention is: provide a kind of be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear; This device is when playing position-limiting action to rotor rotation; Also have the strong performance of damping effect, help to improve the Security of rotor-support-foundation system operation.
Technological scheme:For solving the problems of the technologies described above; The technological scheme that the present invention adopts is: the frictional resistance Buddhist nun protective gear that bumps that is used for high-speed rotating machine of the present invention comprises upper cover plate, lower cover plate, shell, slide block, bumps rub bulb and metal-rubber ring; Shell and slide block are ring; The upper cover plate middle part is provided with through hole, and the lower cover plate middle part is provided with lower through-hole, and shell, slide block, last through hole and lower through-hole are coaxial; The upper end of shell is fixedly connected with upper cover plate, and the lower end of shell is fixedly connected with lower cover plate, and slide block is arranged in shell; And slide block is embedded between upper cover plate and the lower cover plate; Leave the gap between slide block and the shell, the metal-rubber ring is placed in this gap, bumps on the inwall that the bulb that rubs is positioned at slide block; Bump the axis of the head of the bulb that rubs towards slide block, and the head that bumps the bulb that rubs to the distance of axis respectively less than the radius of last through hole and the radius of lower through-hole.
Described be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear, be marked with damping oil in the gap between described shell and slide block.
Beneficial effect:Compared with prior art, adopt the beneficial effect of technological scheme of the present invention to be: 1. when rotor rotation is played position-limiting action, also have the strong performance of damping effect, help to improve the Security of rotor-support-foundation system operation.Except rub bulb and slide block are bumped in setting, also be provided with the metal-rubber ring in the technological scheme of the present invention.Rotor when running well, rotor and bump bumping in the frictional resistance Buddhist nun protective gear and rub gapped between the bulb.When the vibration exceeding the standard of rotor, rotor will collide the bulb that rubs, and bumps the bulb driving sliding block motion that rubs, and the existing radial motion of slide block has the hoop motion again.Slide block extrusion metal rubber ring.The metal-rubber ring applies the surface friction of high acceleration to slide block, stops the motion of slide block.Bumping in the frictional resistance Buddhist nun protective gear of this structure bumped the bulb that rubs rotor played position-limiting action, and the metal-rubber interannular connects rotor is played damping function, helps to improve the Security of rotor-support-foundation system operation.
2. damping is very obvious.The present technique scheme can be added damping oil in the gap between shell and the slide block.Damping oil can improve the frictional force of whole metal-rubber ring when motion, helps the fast quick-recovery proper motion of rotor state.
3. whole apparatus structure is simple, with low cost, and the life-span is long.In the present technique scheme, whole device can only comprise upper cover plate, lower cover plate, shell, slide block, bump rub bulb and six parts of metal-rubber ring, and is easy to assembly, with low cost.Simultaneously, bump rub bulb and slide block and rotate together, thereby slow down rotor and bump the rubbing action that rubs between the bulb, prolong the working life of bumping the bulb that rubs.
Description of drawings
Fig. 1 is a longitudinal sectional view of the present invention.
Fig. 2 is a plan view of the present invention.
Have among the figure: lower cover plate 1, oil seal ring 2, metal-rubber ring 3, shell 4, damping oil 5, screw 6, upper cover plate 7, gap 8, bump the bulb 9 that rubs, go up through hole 10, slide block 11, lower through-hole 12.
Embodiment
As depicted in figs. 1 and 2, of the present invention a kind of be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear, comprise upper cover plate 7, lower cover plate 1, shell 4, slide block 11, bump rub bulb 9 and metal-rubber ring 3.Shell 4 is ring with slide block 11.Upper cover plate 7 middle parts are provided with through hole 10, and lower cover plate 1 middle part is provided with lower through-hole 12.Last through hole 10 is circular port with lower through-hole 12.Bumping rub bulb 9 preferred bronze, graphite or polytetrafluoroethylmaterial material processes.Shell 4, slide block 11, last through hole 10 and lower through-hole 12 are coaxial.The upper end of shell 4 is fixedly connected with upper cover plate 7, and the lower end of shell 4 is fixedly connected with lower cover plate 1.The mode that is fixedly connected can have multiple, for example adopts screw 6 to connect.Slide block 11 is arranged in shell 4, and slide block 11 is embedded between upper cover plate 7 and the lower cover plate 1.The bottom surface of the upper-end surface of slide block 11 and upper cover plate 7 is relative, and touch with the end face of lower cover plate 1 mutually the lower end surface of slide block 11, leaves gap 8 between the inwall of the outer wall of slide block 11 and shell 4.Metal-rubber ring 3 is placed in the gap 8.Bump the bulb 9 that rubs and be positioned on the inwall of slide block 11, bump the axis of the head of the bulb 9 that rubs towards slide block 11.The head that bumps the bulb 9 that rubs is to the distance of the slide block 11 axis radius less than last through hole 10, and the head that bumps the bulb 9 that rubs is to the distance of the slide block 11 axis radius less than lower through-hole 12.That is to say, be the head that bumps the bulb 9 that rubs apart from the nearest part of slide block 11 axis.
That uses said structure bumps frictional resistance Buddhist nun protective gear, and need be fixed is connected on the stator, and this bumps the centre of frictional resistance Buddhist nun protective gear the rotor suit.Even it is overlapping that the axis of rotor and this bump the axis of frictional resistance Buddhist nun protective gear.During work, rotor rotates, rotor when running well, rotor and bump bumping in the frictional resistance Buddhist nun protective gear and rub gapped between the bulb 9.When the vibration exceeding the standard of rotor, rotor will collide the bulb 9 that rubs, and bumps bulb 9 driving sliding block 11 motions that rub, and slide block 11 existing radial motions have the hoop motion again.Slide block 11 extrusion metal rubber rings 3.3 pairs of slide blocks 11 of metal-rubber ring apply the surface friction of high acceleration, stop the motion of slide block 11.Bumping in the frictional resistance Buddhist nun protective gear of this structure bumps the 9 pairs of rotors of bulb that rub and play position-limiting action, and metal-rubber ring 3 played damping function to rotor indirectly.In a word, this device also has the strong performance of damping effect when rotor rotation is played position-limiting action, helps to improve the Security of rotor-support-foundation system operation.In addition, bump the bulb 9 that rubs and rotate together, thereby slow down rotor and bump the rubbing action that rubs between the bulb 9, prolong the working life of bumping the bulb 9 that rubs with slide block 11.
Further, in order to strengthen damping, be marked with damping oil 5 in the gap 8 between shell 4 and slide block 11.Like this, metal-rubber ring 3 is immersed in the damping oil 5.When rotor is run into the bulb 9 that rubs, damping oil 5 can be strengthened dampings, makes slide block 11 moving on metal-rubber ring 3 inwalls, and metal-rubber ring 3 moves difficulty more on shell 4 inwalls.Especially, the liquid level of damping oil 5 is higher than the end face of metal-rubber ring 3.Like this, whole metal-rubber ring 3 all is immersed in the damping oil 5, and the damping of metal-rubber ring 3 is the strongest.
Further,, avoid damping oil 5 to reveal, on the surface of contact of lower cover plate 1 and slide block 11, an oil seal ring 2 is set, on the surface of contact of lower cover plate 1 and shell 4, another oil seal ring 2 is set in order to guarantee the damping of damping oil 5.Through two oil seal rings 2 are set, damping oil 5 is confined in the gap 8 between shell 4 and the slide block 11 fully, can not reveal through the slit.
Further, described to bump the bulb 9 that rubs be four, along the middle part that circumferentially is evenly arranged in slide block 11 inwalls.Be provided with four at the middle part of slide block 11 inwalls along periphery and bump the bulb 9 that rubs, can guarantee when rotor oscillation exceeds standard, bump the bulb 9 that rubs and to play position-limiting action and damping function to rotor efficiently.
Bottom and slide block 11 interference fit for the bulb 9 that guarantees connection stability, bump to rub.Like this, even rotor is run into when rubbing bulb 9 at high rotating speed, bump the bulb 9 that rubs and also be difficult for coming off from slide block 11.
Claims (7)
- One kind be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear; It is characterized in that; Comprise upper cover plate (7), lower cover plate (1), shell (4), slide block (11), bump bulb that rubs (9) and metal-rubber ring (3), shell (4) and slide block (11) are ring, and upper cover plate (7) middle part is provided with through hole (10); Lower cover plate (1) middle part is provided with lower through-hole (12), and shell (4), slide block (11), last through hole (10) and lower through-hole (12) are coaxial; The upper end of shell (4) is fixedly connected with upper cover plate (7); The lower end of shell (4) is fixedly connected with lower cover plate (1); Slide block (11) is arranged in shell (4), and slide block (11) is embedded between upper cover plate (7) and the lower cover plate (1), leaves gap (8) between slide block (11) and the shell (4); Metal-rubber ring (3) is placed in this gap (8); Bump the bulb that rubs (9) and be positioned on the inwall of slide block (11), bump the axis of the head of the bulb that rubs (9) towards slide block (11), and the head that bumps the bulb that rubs (9) to the distance of axis respectively less than the radius of last through hole (10) and the radius of lower through-hole (12).
- According to claim 1 described be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear, it is characterized in that, be marked with damping oil (5) in the gap (8) between described shell (4) and slide block (11).
- According to claim 2 described be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear; It is characterized in that; Also comprise two oil seal rings (2); An oil seal ring (2) is arranged on the surface of contact of lower cover plate (1) and slide block (11), and another oil seal ring (2) is arranged on the surface of contact of lower cover plate (1) and shell (4).
- According to claim 3 described be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear, it is characterized in that the liquid level of described damping oil (5) is higher than the end face of metal-rubber ring (3).
- According to claim 1,2,3 or 4 described be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear, it is characterized in that the described bulb that rubs (9) that bumps is four, along the middle part that circumferentially is evenly arranged in slide block (11) inwall.
- According to claim 5 described be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear, it is characterized in that the described bulb that rubs (9) that bumps is processed for bronze, graphite or polytetrafluoroethylmaterial material.
- According to claim 6 described be used for high-speed rotating machine bump frictional resistance Buddhist nun protective gear, it is characterized in that described bottom and slide block (11) interference fit of bumping the bulb that rubs (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100385496A CN102102722B (en) | 2011-02-16 | 2011-02-16 | Rub-impact damping protection device for high-speed rotating machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100385496A CN102102722B (en) | 2011-02-16 | 2011-02-16 | Rub-impact damping protection device for high-speed rotating machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102102722A CN102102722A (en) | 2011-06-22 |
| CN102102722B true CN102102722B (en) | 2012-06-13 |
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ID=44155706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100385496A Expired - Fee Related CN102102722B (en) | 2011-02-16 | 2011-02-16 | Rub-impact damping protection device for high-speed rotating machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102102722B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838003B (en) * | 2017-01-18 | 2018-12-28 | 东南大学 | A kind of Permanent-magnet bearing with pendulum-type film damper |
| CN106917845A (en) * | 2017-01-18 | 2017-07-04 | 东南大学 | It is a kind of to touch frictional resistance Buddhist nun's protection device for high-speed rotating machine |
| CN107147244B (en) * | 2017-05-26 | 2019-12-03 | 中国科学院工程热物理研究所 | It is a kind of to touch rub protective device and the rotating machinery using it |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159166A (en) * | 1988-06-30 | 1992-10-27 | Rieter Machine Works, Ltd. | Drawroll unit |
| DE19632786A1 (en) * | 1996-08-15 | 1998-02-19 | Schenck Rotec Gmbh | Storage facility |
| FR2839396A1 (en) * | 2002-05-06 | 2003-11-07 | Technofan | Electric motor with improved support for shaft, uses a packing ring made of an elastic material between bearing and bearing housing to avoid vibration and compensate misalignment |
| CN2769611Y (en) * | 2004-11-04 | 2006-04-05 | 北京航空航天大学 | Adaptive squeezing oil film damper with metal rubber external ring |
| CN201982578U (en) * | 2011-02-16 | 2011-09-21 | 东南大学 | Rub-impact damping protection device used for high speed rotating machinery |
-
2011
- 2011-02-16 CN CN2011100385496A patent/CN102102722B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102102722A (en) | 2011-06-22 |
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