CN202215660U - Gear box shock-absorbing device of wind-driven generator - Google Patents
Gear box shock-absorbing device of wind-driven generator Download PDFInfo
- Publication number
- CN202215660U CN202215660U CN2011202945638U CN201120294563U CN202215660U CN 202215660 U CN202215660 U CN 202215660U CN 2011202945638 U CN2011202945638 U CN 2011202945638U CN 201120294563 U CN201120294563 U CN 201120294563U CN 202215660 U CN202215660 U CN 202215660U
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- leaf spring
- wind
- driven generator
- arc
- gear box
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- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to a gear box shock-absorbing device of a wind-driven generator, which is fastened between a gear box (3) and a main machine frame (4) and comprises a clamping flange (2), wedge blocks (7), square plate springs (6) and arc-shaped plate springs (5). The wedge blocks (7) are fixed on two sides of the central axis of the clamping flange (2) through pre-tightening bolts (8), the square plate springs (6) are adhered to the upper wedge surface and the lower wedge surface of the wedge blocks (7), and the arc-shaped plate springs (5) are adhered to a flange of the main machine frame (4) and the inner side face of the clamping flange (2) in circumferentially evenly distributed mode. The gear box shock-absorbing device of the wind-driven generator can bear axial and radial load from the hub center of a megawatt wind-driven generator set, remits vibration of the wind-driven generator set when an impact with large load occurs, and deformation volume of a gear box body and local stress concentration are reduced.
Description
Technical field
The utility model relates to a kind of damping device, particularly relates to a kind of connection set that is used for the wind-driven generator wheel-box vibration and noise reducing.
Background technique
Double-fed wind-powered electricity generation unit is the most ripe type of technology in the current wind power generation field, and the main structure characteristics are to contain gear-box in the Transmitted chains, and are installed on the mainframe through flexible connection mode.Optimize gear-box and mainframe linkage structure, take necessary vibration and noise reducing measure just to seem particularly important.This improves the safety reliability of gear-box working life and unit for cushioning and reducing the vibration that is delivered to engine room structure and pylon from gear-box, guarantees that the unit running is steady and do not have impact shock or abnormal sound has good effect.
In the wind-driven generator below the MW class, often adopt bearing shell formula elastic damping.It is made up of upper and lower two halves elastomer, and press-fits in the gear-box toggle through mandrel.But because upper and lower elastomer difficult installation, and do not have baffle plate in the end, axially being does not have the constraint free state, under long-term alternate load effect, possibly take place axially to scurry out, thereby influence the gear box vibration damping performance.From now on one period, the double-fed wind-powered electricity generation unit of MW class will progressively become main force's type of wind-power electricity generation.The load that the raising of the power of the assembling unit makes gear-box bear sharply increases, and it is outstanding all the more that the drawback of bearing shell formula elastic damping shows, and is difficult to be suitable for the progress of wind power technology.
The model utility content
The technical problem that the utility model will solve provides a kind of vibration damping equipment that can bear than canine tooth roller box load, this damping device can reduce and buffer gear cold case and cabin between vibration, improve wind-powered electricity generation unit operation stationarity.
For reaching above-mentioned purpose; A kind of wind-driven generator wheel-box damping device of the utility model; Between gear-box and mainframe, this damping device comprises clamping flange, voussoir, square leaf spring and arc-shaped leaf spring through bolton, and voussoir is fixed in the both sides of clamping flange medial axis through pretension bolt; Square leaf spring is adhered on the wedge surface up and down of voussoir, and arc-shaped leaf spring circumferentially is uniformly distributed with the inner side surface that is bonded in mainframe and clamping flange.
A kind of wind-driven generator wheel-box damping device of the utility model, wherein said damping device are annular, become centrosymmetric structure with the gear-box axis.
A kind of wind-driven generator wheel-box damping device of the utility model, wherein said square leaf spring is the rectangular block rubber, said arc-shaped leaf spring is the circular arc block rubber.
In the utility model gear-box damping device; Square leaf spring mainly bears the moment of torsion from the wheel hub center; Under the effect of square leaf spring vertical force, its vertical stiffness increases rapidly, the radial rigidity of auxilliary arc-shaped leaf spring; Torque load is converted into the elastic potential energy and the heat energy of rubber, guarantees gearbox output shaft and generator input shaft centering; Arc-shaped leaf spring bears the thrust load from the wheel hub center; When gear-box and mainframe generation axial displacement; The arc-shaped leaf spring of gear-box flange one side bears pressure, and the compressive strain of rubber is converted into the elastic potential energy and the heat energy of arc-shaped leaf spring, the axial displacement of limiting gear case with vibration; The radial displacement of nodding is to resist together through the vertical stiffness of square leaf spring and arc-shaped leaf spring radial rigidity, and the radial displacement of shaking the head is the vertical stiffness opposing by arc-shaped leaf spring.
The beneficial effect of the utility model wind-driven generator wheel-box damping device is; Can bear axial and radial load from megawatt-level wind unit wheel hub center; When big load impacting takes place, alleviate the wind-powered electricity generation unit vibration, reduce gear case body amount of deformation and stress raisers phenomenon.
Description of drawings
Fig. 1 is the plan view of the utility model;
Fig. 2 is the A--A sectional view of the utility model.
Description of reference numerals: 1-bolt; The 2-clamping flange; The 3-gear-box; The 4-mainframe; The 5-arc-shaped leaf spring; The square leaf spring of 6-; The 7-voussoir; The 8-pretension bolt.
Embodiment
Below in conjunction with accompanying drawing and embodiment, do more detailed explanation with other technical characteristics and advantage to the utility model is above-mentioned.
As depicted in figs. 1 and 2, a kind of wind-driven generator wheel-box damping device of the utility model is shaped as annular; Axis with gear-box 3 becomes centrosymmetric structure; Be fastened between gear-box 3 and the mainframe 4 through bolt 1, the utility model device comprises clamping flange 2, voussoir 7, square leaf spring 6 and arc-shaped leaf spring 5, and clamping flange 2 axis both sides are provided with U type recess; Voussoir 7 is provided with U type tang; Voussoir 7 is fixed in the both sides of clamping flange 2 medial axis through pretension bolt 8, the initial stiffness of the square leaf spring 6 of pretightening force size decision, and the U type tang of voussoir 7 has two wedge surfaces up and down; Square leaf spring 6 is adhered on the wedge surface up and down of voussoir 7, and arc-shaped leaf spring 5 circumferentially is uniformly distributed with the inner side surface that is bonded on mainframe 4 flanges with clamping flange 2.
Wherein square leaf spring 6 is the rectangular block rubber, and said arc-shaped leaf spring 5 is the circular arc block rubber, and the material of leaf spring is natural rubber, utilizes the damping characteristic of rubber to alleviate the vibration between gear-box and the mainframe during work, reaches the effect of vibration insulation and noise reduction.The rigidity of vibration damping equipment is to realize through pretightening force, the number of arc-shaped leaf spring 5 and the dimensional parameters of leaf spring of adjustment voussoir 7, and the pretightening force of voussoir 7 is then set through the Tightening moment of pretension bolt 8.
During assembling; At first arc-shaped leaf spring 5 edges circumferentially are uniformly distributed with on the flange that is bonded in mainframe 4; And along circumferentially being uniformly distributed with the inboard that is bonded in clamping flange 2; Subsequently with gear-box 3 mainframe 4 of packing into, at last with clamping flange 2 through clamping bolt 1 fastening installation, the arc-shaped leaf spring 5 in this moment vibration damping equipment is compressed by pretension.
After assembling was accomplished, square leaf spring 6 produced certain precompression distortion, and is to bind contact relation between the U type recess surface of contact of wedge surface and clamping flange 2, and is similarly the binding contact relation between arc-shaped leaf spring 5 and mainframe 4 flanges and clamping flange 2 inner side surfaces.The radial rigidity of the vertical stiffness of square leaf spring 6 and arc-shaped leaf spring 5 is born the moment of torsion at wheel hub center, and wherein the former plays a major role; Mainly bear from the nodding load at wheel hub center, and be that vertical stiffness through arc-shaped leaf spring 5 bears from the yawing load at wheel hub center by the vertical stiffness of square leaf spring 6 and arc-shaped leaf spring 5.
Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technological scheme of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (3)
1. wind-driven generator wheel-box damping device; Be fastened between gear-box (3) and the mainframe (4) through bolt (1); It is characterized in that: comprise clamping flange (2), voussoir (7), square leaf spring (6) and arc-shaped leaf spring (5); Voussoir (7) is fixed in the both sides of clamping flange (2) medial axis through pretension bolt (8), and square leaf spring (6) is adhered on the wedge surface up and down of voussoir (7), and arc-shaped leaf spring (5) circumferentially is uniformly distributed with and is bonded on mainframe (4) flange and the inner side surface of clamping flange (2).
2. damping device according to claim 1 is characterized in that: become centrosymmetric structure with gear-box (3) axis.
3. damping device according to claim 1 is characterized in that: said square leaf spring (6) is the rectangular block rubber, and said arc-shaped leaf spring (5) is the circular arc block rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202945638U CN202215660U (en) | 2011-08-12 | 2011-08-12 | Gear box shock-absorbing device of wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202945638U CN202215660U (en) | 2011-08-12 | 2011-08-12 | Gear box shock-absorbing device of wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215660U true CN202215660U (en) | 2012-05-09 |
Family
ID=46014916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202945638U Expired - Lifetime CN202215660U (en) | 2011-08-12 | 2011-08-12 | Gear box shock-absorbing device of wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215660U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101842524B1 (en) | 2017-09-29 | 2018-05-14 | (주)영광공작소 | Amplitude damper for wind power generator |
| CN112833168A (en) * | 2021-01-04 | 2021-05-25 | 株洲时代新材料科技股份有限公司 | Novel face bearing bush type gear box shock absorber |
| CN117662675A (en) * | 2024-01-29 | 2024-03-08 | 江苏盐城海风科技有限公司 | Vibration damper for wind power generation equipment |
-
2011
- 2011-08-12 CN CN2011202945638U patent/CN202215660U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101842524B1 (en) | 2017-09-29 | 2018-05-14 | (주)영광공작소 | Amplitude damper for wind power generator |
| CN112833168A (en) * | 2021-01-04 | 2021-05-25 | 株洲时代新材料科技股份有限公司 | Novel face bearing bush type gear box shock absorber |
| CN112833168B (en) * | 2021-01-04 | 2022-07-05 | 株洲时代新材料科技股份有限公司 | Novel face bearing bush type gear box shock absorber |
| CN117662675A (en) * | 2024-01-29 | 2024-03-08 | 江苏盐城海风科技有限公司 | Vibration damper for wind power generation equipment |
| CN117662675B (en) * | 2024-01-29 | 2024-04-16 | 江苏盐城海风科技有限公司 | Vibration damper for wind power generation equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |