CN217462846U - Device for preventing wind motor connecting bolt is not hard up - Google Patents
Device for preventing wind motor connecting bolt is not hard up Download PDFInfo
- Publication number
- CN217462846U CN217462846U CN202121131354.1U CN202121131354U CN217462846U CN 217462846 U CN217462846 U CN 217462846U CN 202121131354 U CN202121131354 U CN 202121131354U CN 217462846 U CN217462846 U CN 217462846U
- Authority
- CN
- China
- Prior art keywords
- nut
- sawtooth
- connecting plate
- connecting bolt
- wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model discloses a prevent not hard up device of wind-powered electricity generation machine connecting bolt, set up on the connecting bolt of wind-powered electricity generation machine, including basic nut, the sawtooth nut, fixed nut and connecting plate, basic nut, the sawtooth nut, fixed nut all laminates the setting from bottom to top in proper order on connecting bolt through the screw thread, fixed nut's external diameter is greater than the external diameter of sawtooth nut, sawtooth nut outer peripheral surface is provided with the sawtooth, the sawtooth hole that suits with sawtooth nut shape is seted up to the connecting plate, the setting is inlayed in the sawtooth hole of connecting plate to the sawtooth nut, the connecting plate is inlayed and is provided with two or more than two sawtooth nuts. The utility model realizes the fixation of the sawtooth nut by arranging the interlocking sawtooth nut and the connecting plate and utilizing the characteristic that the rotation centers of the sawtooth nuts are not coincident, thereby achieving the effect of preventing the connecting bolt from loosening; the installation is convenient, and the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of wind-powered electricity generation device, a prevent not hard up device of wind-powered electricity generation machine connecting bolt is related to.
Background
With the rapid development of energy sources, the occupation rate of renewable energy sources in the world energy resource proportion is larger and larger. Wind power has attracted more and more attention due to its advantages of clean use, abundant wind resources, low cost, flexible installation scale, etc. The wind motor equipment bears a large wind load, so that the safe and stable operation of the wind motor can not leave the safety and reliability of the components.
The connecting bolts between the hub and the blades of the wind motor and the connecting bolts between the tower barrels of the wind motor are used as important connecting parts of the wind motor, and the safe operation of the whole wind motor is directly influenced. The bolt is under the action of alternating load for a long time and the wind turbine is easy to loosen due to long-term structural vibration, so that the stress variation range of the bolt is enlarged, and the bolt is easy to generate fatigue fracture under the condition, so that the effect of preventing the loosening of the connecting bolt has very important significance for the safe operation of the wind turbine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prevent not hard up device of wind-powered electricity generation machine connecting bolt through locking sawtooth nut, prevents not hard up of connecting bolt.
The utility model provides a technical scheme who adopts is, a prevent not hard up device of wind-powered electricity generation machine connecting bolt, set up on the connecting bolt of wind-powered electricity generation machine, including basic nut, the sawtooth nut, fixing nut and connecting plate, basic nut, the sawtooth nut, fixing nut all laminates the setting from bottom to top in proper order on connecting bolt through the screw thread, fixing nut's external diameter is greater than the external diameter of sawtooth nut, sawtooth nut outer peripheral surface is provided with the sawtooth, the sawtooth hole that suits with sawtooth nut shape is seted up to the connecting plate, the sawtooth nut is inlayed and is set up in the sawtooth hole of connecting plate, the connecting plate is inlayed and is provided with two or more than two sawtooth nuts.
The utility model is also characterized in that,
the saw teeth of the saw tooth nut are uniformly arranged.
The number of the saw teeth of the saw-tooth nut is more than 15.
The rotation directions of the internal threads of the fixing nut and the basic nut are consistent.
The number of the fixing nuts is one or more than one.
The utility model has the advantages that:
the utility model relates to a device for preventing the connection bolt of the wind motor from loosening, which has simple structure and convenient use; the saw-tooth nuts and the connecting plates are interlocked, and the saw-tooth nuts are fixed by utilizing the characteristic that the rotation centers of the saw-tooth nuts are not coincident, so that the effect of preventing the connecting bolt from loosening is achieved; the installation is convenient, and the practicality is strong.
Drawings
FIG. 1 is a schematic structural view of a device for preventing a wind turbine connecting bolt from loosening according to the present invention;
FIG. 2 is a schematic structural diagram of a connecting plate of a device for preventing a connecting bolt of a wind turbine from loosening according to the present invention;
fig. 3 is a schematic structural view of a saw tooth nut of the device for preventing the connection bolt of the wind motor from loosening.
In the figure, 1, a connecting bolt, 2, a base nut, 3, a sawtooth nut, 4, a connecting plate, 5, a fixing nut and 6, a sawtooth hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a prevent not hard up device of wind-powered electricity generation machine connecting bolt, as shown in FIG. 1, set up on the connecting bolt 1 of wind-powered electricity generation machine, including basic nut 2, sawtooth nut 3, fixation nut 5 and connecting plate 4, basic nut 2, sawtooth nut 3, fixation nut 5 all laminates the setting in proper order from bottom to top on connecting bolt 1 through the screw thread, the outer peripheral surface of sawtooth nut 3 is provided with the sawtooth, as shown in FIG. 2, connecting plate 4 sets up the sawtooth hole 6 that suits with 3 shapes of sawtooth nut, sawtooth nut 3 inlays the setting in the sawtooth hole 6 of connecting plate 4, connecting plate 4 is inlayed and is provided with sawtooth nut 3 more than two or two.
As shown in fig. 3, the saw teeth of the saw tooth nut 3 are uniformly arranged, the number of the saw teeth of the saw tooth nut 3 is more than 15, and the number of the saw teeth of the saw tooth nut 3 is the same as that of the saw teeth of the saw tooth hole 6.
The internal thread rotation direction of fixing nut 5 and basic nut 2 is unanimous, and the external diameter of fixing nut 5 is greater than the external diameter of sawtooth nut 3 to avoid connecting plate 4 and sawtooth nut 3 to break away from in the vertical direction, because connecting plate 4 does not receive the effort on the vertical direction hardly, fixing nut 5 quantity is one or more, and need not arrange fully.
The utility model relates to a prevent not hard up device of wind-powered electricity generation machine connecting bolt's essential element effect as follows:
the base nut 2 serves as a basic fastening for the connecting bolt 1.
Sawtooth nut 3 inlays in the sawtooth hole 6 of connecting plate 4 for sawtooth nut 3 realizes jointly interlocking with connecting plate 4, even basis nut 2 can't let connecting bolt 1 fasten completely during the work like this, and connecting bolt 1 can not become flexible yet, and the thickness of sawtooth nut 3 is confirmed according to actual on-the-spot connecting bolt 1 top headspace.
The gap between the saw teeth of the saw tooth nut 3 and the saw teeth of the connecting plate 4 can be adjusted, and the gap adjusting range is 0-3mm according to different sizes and different sizes of the saw teeth of the connecting bolt 1, so that the problem of deviation existing in the design drawing and the actual field installation can be solved.
Fixing nut 5 makes connecting plate 4 press from both sides between fixing nut 5 and basic nut 2, avoids connecting plate 4 not hard up, and fixing nut 5 can obtain with the cutting of standard part nut, also can do by level, and fixing nut 5's thickness is decided according to actual on-the-spot bolt top headspace.
The utility model relates to a prevent not hard up device of wind-powered electricity generation machine connecting bolt's use and theory of operation specifically as follows:
after basic nut 2 is fixed, screw up 3 sawtooth nuts to the position with 2 upper surface in close contact with of basic nut, sawtooth nut 3 inlays in sawtooth hole 6 of connecting plate 4, 3 each sawtooth nut are chain, last through 5 fixed connection boards of fixation nut 4 can, 4 quantity of connecting plate can be selected in a flexible way, the transportation of being more convenient for, installation and dismantlement, the fixed motionless that sawtooth nut 3 was realized to the characteristics that utilize 3 rotation centers of each sawtooth nut to not coincide, thereby reach the effect that prevents connecting bolt 1 not hard up.
The outer loop of sawtooth nut has a plurality of sawtooth, because sawtooth nut 3 and basic nut 2 in close contact with, the sawtooth is not necessary can correspond completely with the sawtooth hole 6 of connecting plate 4, so need finely tune sawtooth nut 3, will cause certain error to the connecting bolt pretightning force like this, can design sawtooth quantity according to the requirement of pretightning force amplitude of change and the numerical value of bolt pitch, so that satisfy the required precision. The common pretightening force of a wind turbine generator system is 400KN, the specification is M36X 4, and the length is 485mm, so the sawtooth nut 3 needs to be finely adjusted because the sawtooth of the sawtooth nut 3 can not be completely and closely attached to the sawtooth hole 6 of the connecting plate 4 when the sawtooth nut 3 is closely contacted with the basic nut 2, and if the pretightening force change range lost by micro loosening of the connecting bolt is within 5%, each sawtooth nut needs at least 45 sawteeth.
Claims (5)
1. The utility model provides a prevent not hard up device of wind-powered electricity generation machine connecting bolt sets up on connecting bolt (1) of wind-powered electricity generation machine, a serial communication port, including basic nut (2), sawtooth nut (3), fixation nut (5) and connecting plate (4), basic nut (2), sawtooth nut (3), fixation nut (5) are all laminated the setting in proper order from bottom to top on connecting bolt (1) through the screw thread, the external diameter of fixation nut (5) is greater than the external diameter of sawtooth nut (3), outer peripheral surface of sawtooth nut (3) is provided with the sawtooth, sawtooth hole (6) that suit with sawtooth nut (3) shape are seted up in connecting plate (4), setting is inlayed in sawtooth hole (6) of connecting plate (4) in sawtooth nut (3), connecting plate (4) are inlayed and are provided with sawtooth nut (3) more than two.
2. The device for preventing the connection bolt of the wind motor from loosening as claimed in claim 1, wherein the saw teeth of the saw tooth nut (3) are uniformly arranged.
3. The device for preventing the connecting bolt of the wind motor from loosening as claimed in claim 1, wherein the number of sawteeth of the sawtooth nut (3) is more than 15.
4. The device for preventing the connection bolt of the wind motor from loosening as claimed in claim 1, wherein the fixing nut (5) and the base nut (2) have the same internal thread rotation direction.
5. The device for preventing the connecting bolt of the wind motor from loosening as claimed in claim 1, wherein the number of the fixing nuts (5) is more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121131354.1U CN217462846U (en) | 2021-05-25 | 2021-05-25 | Device for preventing wind motor connecting bolt is not hard up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121131354.1U CN217462846U (en) | 2021-05-25 | 2021-05-25 | Device for preventing wind motor connecting bolt is not hard up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217462846U true CN217462846U (en) | 2022-09-20 |
Family
ID=83234629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121131354.1U Active CN217462846U (en) | 2021-05-25 | 2021-05-25 | Device for preventing wind motor connecting bolt is not hard up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217462846U (en) |
-
2021
- 2021-05-25 CN CN202121131354.1U patent/CN217462846U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217462846U (en) | Device for preventing wind motor connecting bolt is not hard up | |
| CN202300867U (en) | Flange assembly positioning device for roots of embedded bolt fan blades | |
| CN108757298B (en) | Pre-buried bolt structure of wind-powered electricity generation blade root | |
| CN113374774A (en) | Anti-loosening fixing device for connecting bolt of wind motor | |
| CN102013764B (en) | Device for changing slip ring of motor | |
| CN206246295U (en) | A kind of cable fixture of wind power generating set | |
| CN111306012A (en) | Method for correcting deviation of connecting surface of wind wheel system and transmission main shaft of wind generating set | |
| CN206727588U (en) | A kind of wind electric power generation cable clamp assembly | |
| He et al. | Research on an innovative large-scale offshore wind power seawater desalination system | |
| CN112814837A (en) | Wind turbine generator system bolted connection structure, blade root structure, wind turbine blade and unit | |
| CN212508453U (en) | Power plant turbo generator base | |
| CN210238555U (en) | Offshore wind turbine foundation platform steel grating fixing device | |
| CN209539766U (en) | A kind of wind power generation blade bolt | |
| CN202301894U (en) | Center distance adjusting device for open gear pair | |
| CN104279120A (en) | Matrix wind accelerating type wind generating set | |
| CN213419648U (en) | High strength wind-powered electricity generation fastener bolt for base | |
| CN205876607U (en) | Wind turbine generator system load optimal control system | |
| CN207975085U (en) | Rod piece clamp device | |
| CN202746114U (en) | Blade locking device of wind turbine generator | |
| CN212985460U (en) | Anti-loosening fastening device for wind vane of wind meter of wind driven generator | |
| CN213175920U (en) | Punching type bolt connecting structure for wind turbine blade | |
| CN211901243U (en) | Locknut structure with screw pitch difference | |
| CN209562450U (en) | A kind of not perforated formula Universal-purpose quick fastening structure between photovoltaic module and purlin | |
| CN214837732U (en) | Locking device for preventing wind motor bolt from loosening | |
| CN216158052U (en) | Wind-powered electricity generation M39 and above big specification high strength bolted connection are vice |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |