CN203948558U - A kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system - Google Patents
A kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system Download PDFInfo
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- CN203948558U CN203948558U CN201420376203.6U CN201420376203U CN203948558U CN 203948558 U CN203948558 U CN 203948558U CN 201420376203 U CN201420376203 U CN 201420376203U CN 203948558 U CN203948558 U CN 203948558U
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Abstract
Utilize ultrasonic vibration to suppress a device for small rotary machinery vibration of rotor system, be constructed as follows: supersonic transducer (1), sleeve (2), flat key (3), connection part A (4), the semi-hollow shaft part (6) with transducer holder, connection part B (7), not with the semi-hollow shaft part (8) of transducer holder; The part of supersonic transducer (1) is arranged in sleeve (2) inside, the part of supersonic transducer (1) and sleeve (2) is all arranged in in the duct in the semi-hollow shaft part (6) of transducer holder, sleeve (2) is connected by connection part A (4) with the semi-hollow shaft part (6) with transducer holder, with the semi-hollow shaft part (6) of transducer holder with not assemble by connection part B (7) with the semi-hollow shaft part (8) of transducer holder be a spheroidal structure part.The utility model real-time is good, and controllability is high, simple in structure, cost is low, has expected comparatively huge economic value and social value.
Description
Technical field
The utility model relates to a kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system, and it is widely used in the inhibition that rotor journal is less than the small rotary machinery vibration of 10cm.
Background technique
In prior art, the extensive use in national economy of all kinds of miniature high-speed rotating machineries, along with turning, stator gap is more and more less, its vibration causes equipment failure problem more and more outstanding, because rotating speed is very high, these faults can cause serious harm, not only affect the stable operation of equipment, and some even causes catastrophic consequence.
The method that suppresses at present vibration mainly adopts dynamic balancing technique, but dynamic balancing technique lost efficacy sometimes, and dynamic balancing must carry out when shutting down, and cannot accomplish online inhibition vibration; The method of controlling vibration mainly comprises electromagnetic method, damped method, various regulators etc.; but control under many circumstances also imperfection of vibrotechnique; as electromagnetic method need not be applied in non-ferrous material, magnetic flow liquid temperature influence is larger; damper usually can lose efficacy, and in the supercritical region of rotor, produces serious unstable problem etc.
Therefore, people expect to obtain the good device that can utilize the rotor oscillation of ultrasonic vibration inhibition small rotary machinery of a kind of technique effect.
Summary of the invention
The purpose of this utility model is that the good ultrasonic vibration that can utilize of a kind of technique effect suppresses the device of small rotary machinery rotor oscillation.In order to overcome the vibration of small rotary machinery and the fault being caused by vibration, and the deficiency that makes up current inhibition vibrotechnique, the utility model provides a kind of device that suppresses vibration, this device can suppress the judder of small rotary machinery, and due to controlled ultrasonic vibration, make this device adjust precision higher, make rotor-support-foundation system reach optimal operational condition.
The utility model provides a kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system, and this device is arranged on the larger position of vibrating rotator amplitude; It is characterized in that: it is constructed as follows: supersonic transducer 1, sleeve 2, flat key 3, connection part A4, mobile self-locking structure 5, the semi-hollow shaft part 6 with transducer holder, connection part B7, not with the semi-hollow shaft part 8 of transducer holder; Wherein: supersonic transducer 1 is for axle shape structure and its part are arranged in sleeve 2 inside, and supersonic transducer 1, sleeve 2 connect by mobile self-locking structure 5; The part of supersonic transducer 1, mobile self-locking structure 5 and sleeve 2 is all arranged in in the duct in the semi-hollow shaft part 6 of transducer holder, sleeve 2 connects as one by connection part A4 with the semi-hollow shaft part 6 with transducer holder, bottom with the semi-hollow shaft part 6 of transducer holder is hemispherical structure, and the main body with the semi-hollow shaft part 8 of transducer holder is not hemispherical structure yet; With the semi-hollow shaft part 6 of transducer holder with do not connect as one a spheroidal structure part that forms assembling by connection part B7 with the semi-hollow shaft part 8 of transducer holder; With the semi-hollow shaft part 6 of transducer holder with do not coordinate and be also provided with on the whole reservedly for the whole described device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system is arranged on to epitrochanterian pass structure after assembling with the semi-hollow shaft part 8 of transducer holder, the axis of this pass structure is perpendicular to supersonic transducer 1 axial direction.
The described device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system, it is characterized in that: in the described device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system, be also provided with for adjusting the mobile self-locking structure 5 in the gap between supersonic transducer 1 and rotor surface, mobile self-locking structure 5 is arranged in in the duct in the semi-hollow shaft part 6 of transducer holder, and mobile self-locking structure 5 is structural members or depend on supersonic transducer 1 or/and the structural member of sleeve 2 independently; Mobile self-locking structure 5 is fixedly connected with supersonic transducer 1 or the two is an integral structure component.
Mobile self-locking structure 5 and being arranged on being provided with screw connection structure between the sleeve 2 in the semi-hollow shaft part 6 of transducer holder; Screw connection structure in sleeve 2 is specially the screw thread with self-locking property.
Connection part A4 is specially the combination of bolt, nut, pad; Connection part B7 is specially the combination of double-screw bolt, pad.
The utility model related content is described as follows:
The utility model is achieved through the following technical solutions:
A kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system, it is characterized in that: this device adopts 4 bolt and nuts fix and step up in the larger radial position of rotor oscillation, hollow shaft part is provided with and produces the transducer of ultrasonic vibration and with the sleeve of scale and auto-lock function leading screw, transducer utilizes flat key to be connected with sleeve, utilize sleeve that transducer is connected with hollow shaft part, transducer is referred to as ultrasonic vibrator parts, and sleeve is referred to as micro-adjusting mechanism.
Hollow shaft part is divided into two kinds, a kind of with ultrasonic vibrator parts and micro-adjusting mechanism, a kind of without this type of mechanism, in each device, has a set of ultrasonic vibrator parts and micro-adjusting mechanism at least, can have two covers or even quadruplet.
The utlity model has real-time (using online) good, controllability is high, precision high.The utility model can be eliminated the excessive vibration of rotor-support-foundation system effectively, and apparatus structure is simple, cost is low, greatly reduces the cost that suppresses before this technology; It has expected comparatively huge economic value and social value.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 utilizes ultrasonic vibration to suppress the unitary construction figure (partial cutaway) of the device of small rotary machinery vibration of rotor system;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the parts drawing of the utility model middle sleeve 2;
Fig. 4 is the plan view of Fig. 3.
Embodiment
Reference character implication is as follows: supersonic transducer 1, sleeve 2, flat key 3, connection part A4 (bolt, nut, pad), mobile self-locking structure 5, the semi-hollow shaft part 6 with transducer holder, connection part B (double-screw bolt, pad) 7, not with the semi-hollow shaft part 8 of transducer holder.
Embodiment 1
Utilize ultrasonic vibration to suppress a device for small rotary machinery vibration of rotor system, this device is arranged on the larger position of vibrating rotator amplitude; It is constructed as follows: supersonic transducer 1, sleeve 2, flat key 3, connection part A4, mobile self-locking structure 5, the semi-hollow shaft part 6 with transducer holder, connection part B7, not with the semi-hollow shaft part 8 of transducer holder; Wherein: supersonic transducer 1 is for axle shape structure and its part are arranged in sleeve 2 inside, and supersonic transducer 1, sleeve 2 connect by mobile self-locking structure 5; The part of supersonic transducer 1, mobile self-locking structure 5 and sleeve 2 is all arranged in in the duct in the semi-hollow shaft part 6 of transducer holder, sleeve 2 connects as one by connection part A4 with the semi-hollow shaft part 6 with transducer holder, bottom with the semi-hollow shaft part 6 of transducer holder is hemispherical structure, and the main body with the semi-hollow shaft part 8 of transducer holder is not hemispherical structure yet; With the semi-hollow shaft part 6 of transducer holder with do not connect as one a spheroidal structure part that forms assembling by connection part B7 with the semi-hollow shaft part 8 of transducer holder; With the semi-hollow shaft part 6 of transducer holder with do not coordinate and be also provided with on the whole reservedly for the whole described device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system is arranged on to epitrochanterian pass structure after assembling with the semi-hollow shaft part 8 of transducer holder, the axis of this pass structure is perpendicular to supersonic transducer 1 axial direction.
In the described device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system, be also provided with for adjusting the mobile self-locking structure 5 in the gap between supersonic transducer 1 and rotor surface, mobile self-locking structure 5 is arranged in in the duct in the semi-hollow shaft part 6 of transducer holder, and mobile self-locking structure 5 is structural members or depend on supersonic transducer 1 or/and the structural member of sleeve 2 independently; Mobile self-locking structure 5 is fixedly connected with supersonic transducer 1 or the two is an integral structure component.
Mobile self-locking structure 5 and being arranged on being provided with screw connection structure between the sleeve 2 in the semi-hollow shaft part 6 of transducer holder; Screw connection structure in sleeve 2 is specially the screw thread with self-locking property.
Connection part A4 is specially the combination of bolt, nut, pad; Connection part B7 is specially the combination of double-screw bolt, pad.
When determining that a certain shaft part vibration of rotor-support-foundation system is larger, this device is arranged on to the position that the top of rotor shaft part is herein greater than amplitude to be fixed, mobile supersonic transducer 1 to rotor shaft part near amplitude position, claim that the distance between supersonic transducer 1 and rotor amplitude is gap, open transducer switch, making supersonic transducer 1 produce ultrasonic vibration is ultrasonic suspending force, and it is close to its gyration center that this suspending power will promote vibrating rotator, reduce the amplitude of vibrating rotator, reach the object that suppresses vibration; In addition, a plurality of these vibration suppression devices can be arranged on vibrating rotator diverse location, reach better inhibition vibrating effect, make system reach optimal operational condition.
On this device, with the semi-hollow shaft part 8 of transducer holder, can not change the semi-hollow shaft part 6 with transducer holder into, two semi-hollow shaft parts 6 with transducer holder connect by bolt, nut, pad 4, so just can produce the ultrasonic suspending force that both direction points to axle center simultaneously, from both direction, promote vibrating rotator close to its gyration center simultaneously, significantly reduce the amplitude of rotor, reach the object that suppresses vibration.
When rotor-support-foundation system is with shell, because producing, rotor oscillation touches while rubbing fault, this device can be fixed on the shaft part that touches the fault generation that rubs, mobile supersonic transducer 1 is to case surface contact, now open supersonic transducer 1 switch, for the supersonic transducer 1 and the rotor-support-foundation system that are in contact with one another, supersonic transducer now not only produces suspending power, while is because the effect that suspending power plays positive pressure produces frictional force, it is close to its gyration center that suspending power promotes vibrating rotator, make to touch the rotor that rubs in fault and divided stator from, thoroughly eliminate and touch the fault of rubbing, even can not make rotor and divided stator from, the frictional force that supersonic transducer 1 produces also can be offset part and touch the power of rubbing, reduce friction factor, weaken and to turn stator and touch and rub, can suppress the vibration of rotor equally.
Theoretical according to ultrasound suspending, gap is less, and suspending power is larger, adjusts the gap of ultrasonic vibrator parts and rotor by micro-adjusting mechanism, can increase ultrasonic suspending force, more effectively reduces the amplitude of vibrating rotator, reaches the object that suppresses vibration.
Theoretical according to ultrasound suspending, outside pressure is larger, and suspending power is larger, if rotor oscillation is stronger, by shaft part and this vibration suppression device sealing that is arranged on shaft part, by the pressure increasing in sealed case, increase exponentially suspending power, realize the object that suppresses vibration.
In unitary construction Fig. 1 and plan view 2, vibrating rotator is placed in hollow shaft part 6 and 8, when rotor oscillation, this device is moved to the larger position of vibration fixedly stepping up, supersonic transducer 1 is moved near rotor surface, be greater than rotor amplitude with the distance of rotor surface, open ultrasonic vibrator parts switch and produce suspending power, promote vibrating rotator close to its gyration center, reduce amplitude, with this, reach the object that suppresses vibration.
In Fig. 3, the screw thread in sleeve 2 is the screw thread with self-locking property, can move at any time and fixing supersonic transducer 1, is clearance fine adjustment mechanism, and the effect that suppresses vibration, to increase suspending power, is improved in adjusting play.
In addition, in the time of necessary, can will on this device, with the semi-hollow shaft part 8 of transducer holder, can not change the semi-hollow shaft part 6 with transducer holder into, two semi-hollow shaft parts 6 with transducer holder connect by bolt, nut, pad 4, so just can produce the ultrasonic suspending force that both direction points to axle center simultaneously, from both direction, promote vibrating rotator close to its gyration center simultaneously, significantly reduce the amplitude of rotor, reach the object that suppresses vibration; Or a plurality of these vibration suppression devices are arranged on vibrating rotator diverse location, reach better inhibition vibrating effect, make system reach optimal operational condition.
The present embodiment is achieved through the following technical solutions:
A kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system, this device adopts 4 groups of connection part A4 fix and step up in the larger radial position of rotor oscillation, hollow shaft part is provided with and produces the supersonic transducer 1 of ultrasonic vibration and with the sleeve 2 of scale and auto-lock function leading screw, supersonic transducer 1 utilizes flat key 3 to be connected with sleeve 2, utilize sleeve 2 that supersonic transducer 1 is connected with the semi-hollow shaft part 6 with transducer holder, supersonic transducer 1 can be referred to as ultrasonic vibrator parts again, and sleeve 2 is referred to as again micro-adjusting mechanism.
Hollow shaft part is divided into two kinds, a kind of with ultrasonic vibrator parts and micro-adjusting mechanism, a kind of without this type of mechanism, in each device, has a set of ultrasonic vibrator parts and micro-adjusting mechanism at least, can have two covers or even quadruplet.
It is good that the present embodiment has real-time (using online), and controllability is high, precision high.The present embodiment can be eliminated the excessive vibration of rotor-support-foundation system effectively, and apparatus structure is simple, cost is low, greatly reduces the cost that suppresses before this technology; It has expected comparatively huge economic value and social value.
Claims (4)
1. utilize ultrasonic vibration to suppress a device for small rotary machinery vibration of rotor system, this device is arranged on the larger position of vibrating rotator amplitude; It is characterized in that: it is constructed as follows: supersonic transducer (1), sleeve (2), flat key (3), connection part A (4), the semi-hollow shaft part (6) with transducer holder, connection part B (7), not with the semi-hollow shaft part (8) of transducer holder; Wherein: supersonic transducer (1) is arranged in sleeve (2) inside for axle shape structure and its part; The part of supersonic transducer (1) and sleeve (2) is all arranged in in the duct in the semi-hollow shaft part (6) of transducer holder, sleeve (2) connects as one by connection part A (4) with the semi-hollow shaft part (6) with transducer holder, bottom with the semi-hollow shaft part (6) of transducer holder is hemispherical structure, and the main body with the semi-hollow shaft part (8) of transducer holder is not hemispherical structure yet; With the semi-hollow shaft part (6) of transducer holder with do not connect as one a spheroidal structure part that forms assembling by connection part B (7) with the semi-hollow shaft part (8) of transducer holder; With the semi-hollow shaft part (6) of transducer holder with do not coordinate and be also provided with on the whole reservedly for the whole described device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system is arranged on to epitrochanterian pass structure after assembling with the semi-hollow shaft part (8) of transducer holder, the axis of this pass structure is perpendicular to supersonic transducer (1) axial direction.
2. according to utilizing ultrasonic vibration to suppress the device of small rotary machinery vibration of rotor system described in claim 1, it is characterized in that: in the described device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system, be also provided with for adjusting the mobile self-locking structure (5) in the gap between supersonic transducer (1) and rotor surface, mobile self-locking structure (5) is arranged in the duct in the semi-hollow shaft part (6) with transducer holder, and mobile self-locking structure (5) is structural member or depend on supersonic transducer (1) or/and the structural member of sleeve (2) independently; Mobile self-locking structure (5) is fixedly connected with supersonic transducer (1) or the two is an integral structure component.
3. according to utilizing ultrasonic vibration to suppress the device of small rotary machinery vibration of rotor system described in claim 2, it is characterized in that: mobile self-locking structure (5) be arranged on being provided with screw connection structure between the interior sleeve (2) of the semi-hollow shaft part (6) of transducer holder; Screw connection structure in sleeve (2) is specially the screw thread with self-locking property.
4. according to claim 1-3, utilize described in one of them ultrasonic vibration to suppress the device of small rotary machinery vibration of rotor system, it is characterized in that: connection part A (4) is specially the combination of bolt, nut, pad; Connection part B (7) is specially the combination of double-screw bolt, pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376203.6U CN203948558U (en) | 2014-07-08 | 2014-07-08 | A kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376203.6U CN203948558U (en) | 2014-07-08 | 2014-07-08 | A kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system |
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| Publication Number | Publication Date |
|---|---|
| CN203948558U true CN203948558U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420376203.6U Expired - Fee Related CN203948558U (en) | 2014-07-08 | 2014-07-08 | A kind of device that utilizes ultrasonic vibration to suppress small rotary machinery vibration of rotor system |
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| Country | Link |
|---|---|
| CN (1) | CN203948558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445086A (en) * | 2018-02-09 | 2018-08-24 | 浙江理工大学 | The flat survey method energy converter fixed point level pressure fixture of ultrasonic wave single side and energy converter fixing means |
-
2014
- 2014-07-08 CN CN201420376203.6U patent/CN203948558U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445086A (en) * | 2018-02-09 | 2018-08-24 | 浙江理工大学 | The flat survey method energy converter fixed point level pressure fixture of ultrasonic wave single side and energy converter fixing means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20170708 |