CN103307254A - Dry-friction damping vibration attenuation sleeve for heavy-duty gear - Google Patents
Dry-friction damping vibration attenuation sleeve for heavy-duty gear Download PDFInfo
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- CN103307254A CN103307254A CN2013102892278A CN201310289227A CN103307254A CN 103307254 A CN103307254 A CN 103307254A CN 2013102892278 A CN2013102892278 A CN 2013102892278A CN 201310289227 A CN201310289227 A CN 201310289227A CN 103307254 A CN103307254 A CN 103307254A
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- gear
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- damping
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Abstract
The invention discloses a dry-friction damping vibration attenuation sleeve for a heavy-duty gear, belonging to the field of a structure design of a heavy-duty transmission gear. A damping sleeve main body is an opening annular structure; a tensioning surface is arranged at the opening end; a balance mass block is arranged at the opposite surface of the opening end of the damping sleeve; the damping sleeve is installed behind the heavy-duty gear and is designed with an axial displacement protection structure; the damping sleeve is of an opening compressed type; two corresponding closing sides are arranged at the opening end; each closing side is provided with two tensioning bolt holes; the damping sleeve can be pressed into the gear rim of the gear by screwing tensioning bolts; the damping sleeve is installed behind the transmission gear and is axially provided with four axial displacement protection structures; and the axial displacement protection structures are uniformly distributed on the whole end surface of the gear and have reasonable gaps with the damping sleeve. The dry-friction damping vibration attenuation sleeve for the heavy-duty gear has good friction damping effects and high reliability, is easy in processing, and convenient in installation and detachment, and can work on a rotary transmission gear position reliably for a long term.
Description
Technical field:
The invention belongs to heavy load transmission gear structure design field, be specifically related to a kind of heavy-duty gear dry-friction damping vibration reducing sleeve.
Background technique:
In recent years, along with gear transmission technology develops towards speed up, the vibration noise problem of gear drive is more and more outstanding, simultaneously because the military fields such as aviation, navigation propose more and more higher requirement to the gear vibration noise.The main path that reduces at present the gear drive vibration noise has two, namely reduces excitation and damping vibration attenuation.Reducing excitation is vibration, the noise that reduces equipment by the excitation that reduces equipment, main by such as the machining accuracy that improves gear concerning gear drive, increase contact ratio, to gear carry out correction of the flank shape, the measures such as amount of unbalance that reduce revolving meber come vibration and noise reducing; Because gear drive is high speed rotating unit, machining accuracy is subjected to the up till now restriction of processing technique level, can not improve precision after reaching certain machining accuracy again.Damping vibration attenuation is exactly to offset in other words the vibrational energy that machinery produces by increasing the negative damping of system, absorbing, thereby reaches the purpose that reduces vibration, noise.For gear drive, adopt the method for damping vibration attenuation a more most step to reduce its vibration noise, but at present in the damping vibration attenuation research in the gear drive, mostly be the mode of taking the additional damping material at the casing position, this mode not only spends greatly with respect to directly using damping vibration attenuation structure at the driving gear position of rotation, and DeGrain; Directly paste nonmetallic damping material at the driving gear position and then have integrity problem; In the thin-wall gear member, particularly adopt the dry-friction damping rings directly to carry out Vibration Absorption Designing in the aviation industry at present more, but because the heavy-duty gear carrying is high, structure is thick and heavy, damping ring lacks corresponding vibration damping means for heavy-duty gear structure itself at present because reasons in structure is difficult to use at heavy-duty gear.
Summary of the invention:
The purpose of this invention is to provide a kind of dry damping structure that not only heavily loaded gear structure is had good effectiveness in vibration suppression, reliability is high, can prolonged application arrive the gear position of rotation, and simple in structure, compact, assembling and convenient disassembly.
The objective of the invention is to realize in the following manner: heavy-duty gear dry-friction damping vibration reducing sleeve; it is characterized in that the damped sleeve body is open annular structure; be provided with tension face at opening end; on the opposite of damped sleeve opening end the balancing mass piece is set; damped sleeve is designed with the rotor position protection structure after being installed on heavy-duty gear; damped sleeve is the opening compressible type; its opening end is provided with the limit of furthering of two correspondences; the limit of furthering is provided with two turnbuckle holes; can compress damped sleeve and be pressed into the rim of gear by tightening turnbuckle; damped sleeve axially is provided with four rotor position protection structures after being installed on driving gear; the axial displacement structure is distributed in one week of gear face, and is provided with rational gap between the damped sleeve.
The invention has the beneficial effects as follows: not only frictional damping is effective, and reliability is high, and processing is simple, easy installation and removal, can be operated in stably in a long term the driving gear position of rotation.
Description of drawings:
Fig. 1 is structural representation of the present invention.
Fig. 2 is plan view of the present invention.
Embodiment:
With reference to Fig. 1; heavy-duty gear dry-friction damping vibration reducing sleeve; it is characterized in that the damped sleeve body is open annular structure; be provided with tension face at opening end; on the opposite of damped sleeve opening end the balancing mass piece is set; damped sleeve is designed with the rotor position protection structure after being installed on heavy-duty gear; damped sleeve is the opening compressible type; its opening end is provided with the limit of furthering of two correspondences; the limit of furthering is provided with two turnbuckle holes; can compress damped sleeve and be pressed into the rim of gear by tightening turnbuckle; damped sleeve axially is provided with four rotor position protection structures after being installed on driving gear; the axial displacement structure is distributed in one week of gear face, and is provided with rational gap between the damped sleeve.
Among Fig. 11 manned word gear of attaching most importance to; 2 is the rotor position protection structure; 3 is damped sleeve; 4 for installing clamping bolt; because heavy-duty gear is the herringbone gear transmission, displacement protection structure 2 and damped sleeve 3 all have layout at wheel rim position, gear both sides, and rotor position protection structure 2 has limited the axial displacement of damped sleeve 3; thereby improved the functional reliability of damped sleeve 3, but guaranteed the driving gear position of damped sleeve 3 prolonged application in rotation.Damped sleeve 1 is hatch frame, its rear radius of dehiscing is slightly larger than rim of gear internal diameter, tight a bolt 4 tension damped sleeves 3 so that its radius is slightly less than the wheel rim internal diameter by the tension limit, it is assembled to unclamp behind the wheel rim specified position tights a bolt, thereby the expansion by damped sleeve 3 forms positive pressure between damped sleeve 3 and wheel rim, further form relative friction forces by positive pressure and play preferably damping vibration attenuation effect, by verification experimental verification damped sleeve 3 satisfy the requirement of heavy-duty gear stable operation, and have good effectiveness in vibration suppression.
Claims (3)
1. heavy-duty gear dry-friction damping vibration reducing sleeve; it is characterized in that: the damped sleeve body is open annular structure; be provided with tension face at opening end, on the opposite of damped sleeve opening end the balancing mass piece be set, damped sleeve is designed with the rotor position protection structure after being installed on heavy-duty gear.
2. heavy-duty gear according to claim 1 dry-friction damping sleeve, it is characterized in that: damped sleeve is the opening compressible type, its opening end is provided with the limit of furthering of two correspondences, the limit of furthering is provided with two turnbuckle holes, can compress damped sleeve and is pressed into the rim of gear by tightening turnbuckle.
3. heavy-duty gear according to claim 1 dry-friction damping sleeve; it is characterized in that: damped sleeve axially is provided with four rotor position protection structures after being installed on driving gear; the axial displacement structure is distributed in one week of gear face, and is provided with rational gap between the damped sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102892278A CN103307254A (en) | 2013-07-11 | 2013-07-11 | Dry-friction damping vibration attenuation sleeve for heavy-duty gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102892278A CN103307254A (en) | 2013-07-11 | 2013-07-11 | Dry-friction damping vibration attenuation sleeve for heavy-duty gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103307254A true CN103307254A (en) | 2013-09-18 |
Family
ID=49132812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102892278A Pending CN103307254A (en) | 2013-07-11 | 2013-07-11 | Dry-friction damping vibration attenuation sleeve for heavy-duty gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103307254A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022611A (en) * | 2019-12-05 | 2020-04-17 | 中国航发四川燃气涡轮研究院 | Aviation bevel gear opening damping ring |
| CN114165812A (en) * | 2020-09-11 | 2022-03-11 | 中国航发商用航空发动机有限责任公司 | Fuel nozzle, combustion chamber, gas turbine engine and vibration damping method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4970909A (en) * | 1987-04-08 | 1990-11-20 | Helmut Pelzer | Sound attenuation in wheels |
| CN1123378A (en) * | 1994-11-17 | 1996-05-29 | 日野自动车工业株式会社 | Rotative body, such as gear, belt wheel |
| CN201568548U (en) * | 2009-07-06 | 2010-09-01 | 浙江吉利汽车研究院有限公司 | Vibration and noise reduction gear |
| WO2010131617A1 (en) * | 2009-05-13 | 2010-11-18 | 株式会社小松製作所 | Gear device |
| JP2011256941A (en) * | 2010-06-09 | 2011-12-22 | Nok Corp | Gear damper |
| CN202790402U (en) * | 2012-07-19 | 2013-03-13 | 富莱茵汽车部件有限公司 | Injection pump gear with rubber stress strips |
| WO2013034861A1 (en) * | 2011-09-08 | 2013-03-14 | Turbomeca | Pinion vibration damping using viscoelastic patch |
| CN203322201U (en) * | 2013-07-11 | 2013-12-04 | 中国船舶重工集团公司第七�三研究所 | Dry-friction damping vibration attenuation sleeve for heavy-duty gear |
-
2013
- 2013-07-11 CN CN2013102892278A patent/CN103307254A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4970909A (en) * | 1987-04-08 | 1990-11-20 | Helmut Pelzer | Sound attenuation in wheels |
| CN1123378A (en) * | 1994-11-17 | 1996-05-29 | 日野自动车工业株式会社 | Rotative body, such as gear, belt wheel |
| WO2010131617A1 (en) * | 2009-05-13 | 2010-11-18 | 株式会社小松製作所 | Gear device |
| CN201568548U (en) * | 2009-07-06 | 2010-09-01 | 浙江吉利汽车研究院有限公司 | Vibration and noise reduction gear |
| JP2011256941A (en) * | 2010-06-09 | 2011-12-22 | Nok Corp | Gear damper |
| WO2013034861A1 (en) * | 2011-09-08 | 2013-03-14 | Turbomeca | Pinion vibration damping using viscoelastic patch |
| CN202790402U (en) * | 2012-07-19 | 2013-03-13 | 富莱茵汽车部件有限公司 | Injection pump gear with rubber stress strips |
| CN203322201U (en) * | 2013-07-11 | 2013-12-04 | 中国船舶重工集团公司第七�三研究所 | Dry-friction damping vibration attenuation sleeve for heavy-duty gear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022611A (en) * | 2019-12-05 | 2020-04-17 | 中国航发四川燃气涡轮研究院 | Aviation bevel gear opening damping ring |
| CN114165812A (en) * | 2020-09-11 | 2022-03-11 | 中国航发商用航空发动机有限责任公司 | Fuel nozzle, combustion chamber, gas turbine engine and vibration damping method |
| CN114165812B (en) * | 2020-09-11 | 2023-05-12 | 中国航发商用航空发动机有限责任公司 | Fuel nozzle, combustion chamber, gas turbine engine and vibration damping method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |