CN115059724B - Driving grinding disc damper of disc type force amplification mechanism - Google Patents
Driving grinding disc damper of disc type force amplification mechanism Download PDFInfo
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- CN115059724B CN115059724B CN202210670522.7A CN202210670522A CN115059724B CN 115059724 B CN115059724 B CN 115059724B CN 202210670522 A CN202210670522 A CN 202210670522A CN 115059724 B CN115059724 B CN 115059724B
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- lever
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- hinged
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- 230000007246 mechanism Effects 0.000 title claims abstract description 127
- 230000003321 amplification Effects 0.000 title claims abstract description 16
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 16
- 230000003068 static effect Effects 0.000 claims abstract description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims description 49
- 230000007547 defect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/005—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion using electro- or magnetostrictive actuation means
- F16F15/007—Piezoelectric elements being placed under pre-constraint, e.g. placed under compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
- F16F7/082—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other and characterised by damping force adjustment means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an active grinding disc damper of a disc type force amplification mechanism, and aims to overcome the defects of low controllability, narrow regulation and control range and the like of the existing rotor system damper. The invention includes a blade damper module and a disc type force amplifying mechanism. The abrasive disc damper module comprises a static friction disc and an elastic dynamic friction disc, wherein the dynamic friction disc is connected to a fixed end through a spring, and the static friction disc and the dynamic friction disc are in surface contact to generate resistance. The disc type force amplifying mechanism comprises a fixing mechanism, an amplifying mechanism, an output end, an input end and piezoelectric ceramics; the amplifying mechanism is fixedly connected with the fixing mechanism through a hinge, the output end of the amplifying mechanism is arranged at the output part of the amplifying mechanism, the piezoelectric ceramic is arranged at the fixing mechanism, and the driving end of the piezoelectric ceramic is aligned with the input end of the amplifying mechanism. The output end is extruded with the static friction disk so as to change the friction surface resistance. The force amplifying mechanism is compact and symmetrical in whole, so that the force amplifying mechanism has good rigidity and amplification factor.
Description
Technical Field
The invention belongs to the technical field of vibration reduction, energy dissipation and safety of mechanical engineering, and particularly relates to an active grinding disc damper of a disc type force amplifying mechanism.
Background
A damper is a device that uses damping characteristics to slow down mechanical vibrations and dissipate kinetic energy. The method is widely applied in the fields of aerospace, aviation, automobiles, military industry and the like, and plays an increasingly important role in the performance and safety of mechanical systems.
The existing damper has the defects of poor controllability, narrow regulation range and the like, and cannot meet the stability requirement of high-precision high-speed equipment.
This patent is to the demand of the high, the wide damper of regulation and control scope of controllability, and the innovation provides an initiative abrasive disc attenuator that abrasive disc attenuator module and disc type force amplification mechanism combine. The research result has important theoretical and practical significance in the fields of aerospace, ultra-high-speed rotor systems and the like.
Disclosure of Invention
In view of the above, the present invention provides an active blade damper for a disc-type force amplification mechanism.
In order to achieve the above object, an active lapping damper of a disc type force amplifying mechanism comprises a lapping damper module and a disc type force amplifying mechanism;
The disc type force amplifying mechanism comprises an amplifying mechanism, a fixing mechanism, an input end, an output end and piezoelectric ceramics; the amplifying mechanism is arranged on the fixing mechanism, the output end and the input end are respectively arranged on the output part and the input part of the amplifying mechanism, and the driving end of the piezoelectric ceramic is aligned with the input end of the amplifying mechanism.
The amplifying mechanism comprises a primary amplifying mechanism and a secondary amplifying mechanism, wherein the amplifying mechanism is a symmetrical amplifying mechanism, and the amplifying mechanism is a disc type amplifying mechanism;
The primary amplifying mechanism comprises a lower first lever and an upper first lever, the lower first lever and the upper first lever are symmetrical about the axis of the disc, and the bottom of the lower first lever is hinged to the fixing mechanism through a hinge; the top of the upper first lever is hinged to the fixing mechanism through a hinge;
The first-stage amplification mechanism further comprises a lower first displacement conducting rod and an upper first displacement conducting rod, wherein the right end of the lower first displacement conducting rod is hinged to the lower first lever through a hinge; the right end of the upper first displacement conducting rod is hinged to the upper first lever through a hinge;
The primary amplifying mechanism further comprises an input end, and the input end is in a disc shape; the right end of the lower first lever is hinged to the input end through a hinge; the right end of the upper first lever is hinged with the input end through a hinge.
The fixed mechanism base is provided with the piezoelectric ceramic, and the end part of the piezoelectric ceramic is abutted against the lower surface of the input platform and is adjustable in signal.
The secondary amplifying mechanism comprises a lower second lever and an upper second lever;
the right end of the lower second lever is hinged to the lower first displacement conducting rod through a hinge; the right end of the upper second lever is hinged to the upper first displacement conducting rod through a hinge;
The secondary amplifying mechanism further comprises a lower second displacement conducting rod and an upper second displacement conducting rod, the left end face of the lower second displacement conducting rod is hinged to the output end through a hinge, and the right end face of the lower second displacement conducting rod is hinged to the lower second lever through a hinge; the left end face of the upper second displacement conducting rod is hinged to the output end through a hinge, and the right end face of the upper second displacement conducting rod is hinged to the upper second lever through a hinge.
Preferably, the branched input ends are arranged in an inclined manner, and the branched input ends are arranged in an open horn shape.
Wherein the blade damper module includes an elastic dynamic friction plate and a static friction plate.
Wherein the output end of the disc type force amplifying mechanism is interacted with the static friction disc
The elastic dynamic friction disc is connected to the fixed end through a spring.
Wherein, the static friction disk is fixed at the stiff end through the fastener.
The left end and the right end of the elastic dynamic friction disc are respectively provided with the static friction disc.
Wherein, a disc type force amplifying mechanism is respectively arranged at two ends of the grinding disc damper module.
The invention has the beneficial effects that:
1. according to the active grinding disc damper with the disc type force amplifying mechanism, the disc type force amplifying mechanism is additionally arranged on the basis of the original damper, so that enough pressure can be provided for the static friction disc, the friction force of the contact surface of the static friction disc and the dynamic friction disc is further improved, and the piezoelectric ceramic driving force amplifying mechanism is adopted, so that active control of the damping size of the damper is realized, and the active grinding disc damper is more suitable for actual engineering requirements.
2. The invention provides an active grinding disc damper with a disc type force amplifying mechanism, wherein the amplifying mechanism in the disc type force amplifying mechanism is arranged on a fixing mechanism, so that the structure is modularized, the fixing mechanism is arranged into a disc type structure, the amplifying mechanism is provided with a sufficient supporting structure, so that a sufficient fulcrum can be provided for the amplifying mechanism, namely, the amplifying mechanism can have an upper side and a lower side as supporting points when a lever is arranged, and the amplifying structure can be possibly arranged; the first-stage amplifying structure and the second-stage amplifying structure amplify the force input quantity of the input end, the device adopts a symmetrical amplifying structure, the structure is more compact, the overall rigidity is larger, the coupling error is basically eliminated, and a large enough driving force can be generated so that the regulating and controlling range of the damper is wider, and the device is more suitable for the requirements in reality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the disc type force amplification mechanism of the present invention;
FIG. 3 is a schematic view of the structure of an elastic dynamic friction disc according to the present invention;
Fig. 4 is a schematic view of the structure of the stationary friction plate of the present invention.
Wherein: the grinding disc damper module 1, a disc type force amplifying mechanism 2, a fixing mechanism 3, an output end 4, an input end 5, a lower first lever 6, an upper first lever 7, a lower first displacement conducting rod 8, an upper first displacement conducting rod 9, a lower second lever 10, an upper second lever 11, a lower second displacement conducting rod 12, an upper second displacement conducting rod 13, an elastic movable friction disc 14, a static friction disc 15 and piezoelectric ceramics 16.
Detailed Description
The invention is further described by the following detailed description with reference to the drawings:
embodiment one:
referring to fig. 1, an active blade damper of a disc type force amplifying mechanism includes a blade damper module 1 and a disc type force amplifying mechanism 2;
the blade damper module includes an elastic dynamic friction plate and a static friction plate.
The two ends of the elastic friction disk are respectively provided with the static friction disk.
The static friction disc is fixed on the fixed end through a fastener, and the elastic dynamic friction disc is connected and fixed on the fixed end through a spring; the elastic dynamic friction disk can do reciprocating vibration along with the spring, and then the elastic dynamic friction disk and the static friction disk move mutually through the friction surface to generate damping.
The disc type force amplifying mechanisms are respectively arranged at the two ends of the abrasive disc damper, the output ends of the disc type force amplifying mechanisms are aligned to the static friction disc, the contact pressure of the static friction disc and the elastic dynamic friction disc is increased, the resistance of a friction surface is further changed, the regulation and control range of the abrasive disc damper is increased, the active controllability of the abrasive disc damper is realized, and the abrasive disc type force amplifying mechanism is more suitable for the actual requirements.
Embodiment two:
Referring to fig. 2, the disc type force amplifying mechanism includes an amplifying mechanism, a fixing mechanism, an input end, an output end and piezoelectric ceramics; the amplifying mechanism is arranged on the fixing mechanism, the output end and the input end are respectively arranged on the output part and the input part of the amplifying mechanism, and the driving end of the piezoelectric ceramic is aligned with the input end of the amplifying mechanism.
The amplifying mechanism is integrally designed into a disc type, so that the structure is suitable for a rotor system, and the amplifying mechanism has enough supporting points.
The amplifying mechanism comprises a primary amplifying mechanism and a secondary amplifying mechanism, wherein the amplifying mechanism is a symmetrical amplifying mechanism, and the amplifying mechanism is a disc type amplifying mechanism;
The primary amplifying mechanism comprises a lower first lever and an upper first lever, the lower first lever and the upper first lever are symmetrical about the axis of the disc, and the bottom of the lower first lever is hinged to the fixing mechanism through a hinge; the top of the upper first lever is hinged to the fixing mechanism through a hinge;
The first-stage amplification mechanism further comprises a lower first displacement conducting rod and an upper first displacement conducting rod, wherein the right end of the lower first displacement conducting rod is hinged to the lower first lever through a hinge; the right end of the upper first displacement conducting rod is hinged to the upper first lever through a hinge;
The primary amplifying mechanism further comprises an input end, and the input end is in a disc shape; the right end of the lower first lever is hinged to the input end through a hinge; the right end of the upper first lever is hinged to the input end through a hinge.
The primary amplifying mechanism directly amplifies the force input quantity of the input end, and the displacement of the input end pushes up the lower first lever and the upper first lever, so that the lower first displacement conducting rod and the upper first displacement conducting rod are driven to amplify the input quantity; then the lower first displacement conducting rod and the upper first displacement conducting rod drive the lower second lever and the upper second lever; the device adopts a disc type symmetrical amplifying structure, has more compact structure and higher overall rigidity, basically eliminates coupling errors, and is more suitable for the requirements in practical engineering.
The fixing mechanism base is provided with the piezoelectric ceramic, and the end part of the piezoelectric ceramic is abutted against the lower surface of the input end and is adjustable in signal.
Further, the secondary amplifying mechanism includes a lower second lever and an upper second lever;
the right end of the lower second lever is hinged to the lower first displacement conducting rod through a hinge; the right end of the upper second lever is hinged to the upper first displacement conducting rod through a hinge;
The secondary amplifying mechanism further comprises a lower second displacement conducting rod and an upper second displacement conducting rod, the left end face of the lower second displacement conducting rod is hinged to the output end through a hinge, and the right end face of the lower second displacement conducting rod is hinged to the lower second lever through a hinge; the left end face of the upper second displacement conducting rod is hinged to the output end through a hinge, and the right end face of the upper second displacement conducting rod is hinged to the upper second lever through a hinge.
The lower second lever and the upper second lever drive the lower second displacement conducting rod and the upper second displacement conducting rod, and the lower second displacement conducting rod and the upper second displacement conducting rod amplify the input quantity again and then transmit the amplified input quantity to the output end; the first-stage amplifying mechanism and the second-stage amplifying mechanism form a two-stage disc type symmetrical amplifying mechanism, and the input quantity is further amplified.
In addition, the input end branched chains are obliquely arranged, and the two input end branched chains are arranged in an opening horn shape.
The invention adopts a disc type symmetrical structure, is suitable for a rotor system, has more compact structure and higher overall rigidity, basically eliminates coupling errors, is more suitable for the requirements in actual engineering, and meets the requirements of high-speed high-precision equipment on stability.
Claims (8)
1. An initiative abrasive disc damper of disc type force amplifying mechanism, which is characterized in that: comprises a grinding disc damper module (1) and a disc type force amplifying mechanism (2):
the disc type force amplifying mechanism (2) comprises an amplifying mechanism, a fixing mechanism (3), an output end (4), an input end (5) and piezoelectric ceramics (16); the amplifying mechanism is arranged on the fixing mechanism (3), the output end (4) and the input end (5) are respectively arranged on the output part and the input part of the amplifying mechanism, and the driving end of the piezoelectric ceramic (16) is aligned with the input end of the amplifying mechanism;
the amplifying mechanism comprises a primary amplifying mechanism and a secondary amplifying mechanism, the amplifying mechanism is a symmetrical amplifying mechanism, and the amplifying mechanism is a disc type amplifying mechanism;
The primary amplifying mechanism comprises a lower first lever (6) and an upper first lever (7), the lower first lever (6) and the upper first lever (7) are symmetrical about the axis of the disc, and the bottom of the lower first lever (6) is hinged to the fixing mechanism (3) through a hinge; the top of the upper first lever (7) is hinged to the fixing mechanism (3) through a hinge;
The primary amplifying mechanism further comprises a lower first displacement conducting rod (8) and an upper first displacement conducting rod (9), wherein the right end of the lower first displacement conducting rod (8) is hinged to the lower first lever (6) through a hinge; the right end of the upper first displacement conducting rod (9) is hinged to the upper first lever (7) through a hinge;
The primary amplifying mechanism further comprises an input end (5), and the input end (5) is in a disc shape; the right end of the lower first lever (6) is hinged to the input end (5) through a hinge; the right end of the upper first lever (7) is hinged to the input end (5) through a hinge;
The fixing mechanism (3) is hollow cylindrical, one end of the fixing mechanism is provided with a base, the base is provided with piezoelectric ceramics (16), and the end part of the piezoelectric ceramics (16) is abutted against the lower surface of the input end (5) and has adjustable signals;
The secondary amplifying mechanism comprises a lower second lever (10) and an upper second lever (11); the right end of the lower second lever (10) is hinged to the lower first displacement conducting rod (8) through a hinge, and the bottom of the lower second lever is hinged to the fixing mechanism (3) through a hinge; the right end of the upper second lever (11) is hinged to the upper first displacement conducting rod (9) through a hinge, and the upper part of the upper second lever is hinged to the fixing mechanism (3) through a hinge;
The secondary amplifying mechanism further comprises a lower second displacement conducting rod (12) and an upper second displacement conducting rod (13), wherein the left end face of the lower second displacement conducting rod (12) is hinged to the output end (4) through a hinge, and the right end face of the lower second displacement conducting rod (12) is hinged to the lower second lever (10) through a hinge; the left end face of the upper second displacement conducting rod (13) is hinged to the output end (4), and the right end face of the upper second displacement conducting rod (13) is hinged to the upper second lever (11) through a hinge.
2. The active blade damper for a disc type force amplification mechanism of claim 1, wherein: the branched chain of the input end (5) is obliquely arranged.
3. The active blade damper for a disc type force amplification mechanism of claim 1, wherein: the blade damper module (1) comprises an elastic dynamic friction disc (14) and a static friction disc (15).
4. An active blade damper for a disc type force amplification mechanism as set forth in claim 3, wherein: the output end of the disc type force amplifying mechanism (2) interacts with the static friction disc (15).
5. An active blade damper for a disc type force amplification mechanism as set forth in claim 3, wherein: the elastic dynamic friction disc (14) is connected to the fixed end through a spring.
6. An active blade damper for a disc type force amplification mechanism as set forth in claim 3, wherein: the static friction disk (15) is fixed on the fixed end through a fastener.
7. An active blade damper for a disc type force amplification mechanism as set forth in claim 3, wherein: the left end and the right end of the elastic dynamic friction disc (14) are respectively provided with the static friction disc (15).
8. An active blade damper for a disc type force amplification mechanism as set forth in claim 3, wherein: two ends of the grinding disc damper module (1) are respectively provided with a disc type force amplifying mechanism (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210670522.7A CN115059724B (en) | 2022-06-15 | 2022-06-15 | Driving grinding disc damper of disc type force amplification mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210670522.7A CN115059724B (en) | 2022-06-15 | 2022-06-15 | Driving grinding disc damper of disc type force amplification mechanism |
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| Publication Number | Publication Date |
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| CN115059724A CN115059724A (en) | 2022-09-16 |
| CN115059724B true CN115059724B (en) | 2024-05-24 |
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| CN202210670522.7A Active CN115059724B (en) | 2022-06-15 | 2022-06-15 | Driving grinding disc damper of disc type force amplification mechanism |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02119277A (en) * | 1988-10-28 | 1990-05-07 | Nec Corp | Piezoelectric-element displacement amplification mechanism |
| CN106685262A (en) * | 2017-01-12 | 2017-05-17 | 广东工业大学 | Full-flexible micro-displacement amplification mechanism |
| CN110086374A (en) * | 2019-05-07 | 2019-08-02 | 江西理工大学 | A kind of Inchworm type precision rotation microdrive based on compliant mechanism |
| CN110686038A (en) * | 2019-10-24 | 2020-01-14 | 浙江大学 | Piezoelectric type self-balancing elastic support dry friction damper of rotor support structure of rotary machine |
| CN110778653A (en) * | 2019-10-26 | 2020-02-11 | 浙江大学 | Active elastic ring dry friction damper of rotor supporting structure of rotary machine |
| CN112923013A (en) * | 2021-03-09 | 2021-06-08 | 湖南科技大学 | Self-locking dry friction damper for controlling vibration of aircraft engine rotor |
-
2022
- 2022-06-15 CN CN202210670522.7A patent/CN115059724B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02119277A (en) * | 1988-10-28 | 1990-05-07 | Nec Corp | Piezoelectric-element displacement amplification mechanism |
| CN106685262A (en) * | 2017-01-12 | 2017-05-17 | 广东工业大学 | Full-flexible micro-displacement amplification mechanism |
| CN110086374A (en) * | 2019-05-07 | 2019-08-02 | 江西理工大学 | A kind of Inchworm type precision rotation microdrive based on compliant mechanism |
| CN110686038A (en) * | 2019-10-24 | 2020-01-14 | 浙江大学 | Piezoelectric type self-balancing elastic support dry friction damper of rotor support structure of rotary machine |
| CN110778653A (en) * | 2019-10-26 | 2020-02-11 | 浙江大学 | Active elastic ring dry friction damper of rotor supporting structure of rotary machine |
| CN112923013A (en) * | 2021-03-09 | 2021-06-08 | 湖南科技大学 | Self-locking dry friction damper for controlling vibration of aircraft engine rotor |
Non-Patent Citations (1)
| Title |
|---|
| 转动加载柔性铰链微位移放大器;李万全;高长银;冯地耘;肖启明;;中国机械工程;20110310(第05期);第46-49页 * |
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