CN202266602U - Bidirectional locking mechanism - Google Patents
Bidirectional locking mechanism Download PDFInfo
- Publication number
- CN202266602U CN202266602U CN2011203365945U CN201120336594U CN202266602U CN 202266602 U CN202266602 U CN 202266602U CN 2011203365945 U CN2011203365945 U CN 2011203365945U CN 201120336594 U CN201120336594 U CN 201120336594U CN 202266602 U CN202266602 U CN 202266602U
- Authority
- CN
- China
- Prior art keywords
- screw
- nuts
- nut
- locking mechanism
- bidirectional locking
- 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.)
- Expired - Fee Related
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- 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
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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model relates to a bidirectional locking mechanism, which contains a main shaft with screw thread, main bearings with their inner rings forming an interference fit on the main shaft and nuts which are screwed in the screw thread section of the main shaft and are adjacent to the inner rings of the main bearings. The middle sections of screw holes of the nuts are provided with radial ring grooves. Transverse planes of the nuts close to the main bearings are equipped with screw holes which communicate with the radial ring grooves. Transverse planes of the nuts far from the main bearings are equipped with slotted holes which communicate with the radial ring grooves. Screws which are screwed into the screw holes are installed inside the slotted holes. According to the utility model, the elongated grooves and the screw holes are arranged on the transverse planes of the nuts. The screws are firstly used for tightening. The trapezoid nuts and the main shaft are fixed by axial deformation. Then, through the stepped elongated grooves on the transverse planes of the nuts and by the utilization of the screws for connection, radial deformation of the nuts is caused by the extrusion of the upper ends of the screws, thus fixing the nuts and the shaft. Bidirectional locking is realized through one component. The bidirectional locking mechanism has advantages of simple structure, convenient assembly and high reliability.
Description
Technical field
The utility model relates to a kind of locking mechanism, especially a kind ofly is applied to the bidirectional locking mechanism that wind driven generator principal shaft holds.
Background technique
Wind-driven generator is in work, and the operating mode of running is very complicated, is engraved in during its stressed direction to change; Driving torque is big; And the also variation constantly of stressed size, no matter be the blower fan of which kind of structure, its main bearing all is main Point of Strength; And locking nut is as the main protection part of main bearing, and it will have influence on the safety coefficient and the life-span of whole blower fan to a great extent according to the reliability with operation; Because blower fan receives force direction complicated and changeable in the high-altitude, unidirectional stressed locking nut coefficient of reliability is relatively low, therefore there is bigger potential safety hazard in the blower fan overall structure.
The model utility content
The purpose of the utility model is: to the problem that above-mentioned existing technology exists, propose a kind of easy to assembly and can guarantee the bidirectional locking structure of main shaft and main bearing stable installation property.
In order to reach above purpose; The bidirectional locking mechanism of the utility model; Comprise that main shaft, inner ring interference with thread section are installed in the main bearing on the main shaft; And be screwed in said spindle thread section and with the adjacent nut of said main bearing inner ring, the screw stage casing of said nut has radially annular groove, the end face of the contiguous said main bearing of said nut is shaped on the screw that connects with said radially annular groove; Said nut is shaped on the slotted eye that connects with said radially annular groove away from the end face of said main bearing, and the screw that screws in said screw is housed in the said slotted eye.
The preferred version of the utility model is: aforesaid bidirectional locking trapezoidal nut, the sidewall of said nut offers the fixed hole that communicates with said annular groove, the inner is housed in the said fixed hole leans the fixing pin at said screw.
Aforesaid bidirectional locking trapezoidal nut, the thread section of said main shaft are trapezoidal thread, and said nut is a trapezoidal nut.
Further, aforesaid bidirectional locking trapezoidal nut, said radially annular groove is uniformly distributed with setting along the central axis symmetry, and said radially annular groove both sides are provided with chamfering, and the width of said radially annular groove is less than the width of said screw upper end.
Aforesaid bidirectional locking mechanism, said fixed hole is vertical with said screw, makes fixing pin effective more and direct to the active force of screw.
The beneficial effect of the utility model is: the utility model at first uses the screw tension through on nut end face, offering radially annular groove and screw, realizes the fixing of nut and main shaft through axial deformation; Secondly through in nut end face and combining of annular groove radially, the utilization screw connects, and is caused the radial deformation of nut again by the extruding radial annular groove of screw upper end, thereby realizes fixing of nut and axle; The locking of both direction realizes through a part that just simple in structure, easy to assembly, reliability is high.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the utility model embodiment one structural representation.
Fig. 2 is the A point enlarged diagram of Fig. 1.
Fig. 3 is the utility model embodiment one side schematic view.
Fig. 4 is the B point enlarged diagram of Fig. 3.
Embodiment
Embodiment one
Present embodiment provides a kind of bidirectional locking trapezoidal nut, and basic structure such as Fig. 1 comprise main shaft 1, main bearing 2 and trapezoidal nut 4 to shown in Figure 4; Said main bearing 2 interference are installed on the main shaft 1; Said trapezoidal nut 4 is screwed on the trapezoidal thread of said main shaft 2, and the outside end face of said trapezoidal nut offers the radially annular groove 6 of four symmetrical distributions, in elongated slot, is provided with the screw that connects vertically; In said screw, be screwed with screw 5; The width of screw 5 upper ends is greater than the width of annular groove 6 radially, and is provided with chamfering in the elongated slot both sides, is convenient to the installation that is screwed into of screw.Sidewall at trapezoidal nut 4 offers and the vertical fixed hole that communicates of said screw, in fixed hole, is provided with fixing pin 3 and links to each other with screw 5, to prevent the loosening and flight of screw 5.
This practical new operating procedure: elder generation is installed in trapezoidal nut 4 on the main shaft and applies certain pretightening force; Then screw 5 is screwed in the screw of trapezoidal nut 4; The pulling force of screw 5 is that trapezoidal thread produces axial deformation and forms axial anti-loosing effect, and the screw upper end makes trapezoidal nut produce radial deformation to radially annular groove extruding simultaneously; And prevent radially loosening, thereby utilize a part to realize fastening to the both direction of trapezoidal nut like this; In addition, squeeze into the flight that fixing pin 5 prevents screw, use multiple means like this and then realized two-way locking trapezoidal nut at the sidewall of screw.
Except that the foregoing description, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (6)
1. bidirectional locking mechanism; Comprise that main shaft, inner ring interference with thread section are installed in the main bearing on the main shaft; And be screwed in said spindle thread section and with the adjacent nut of said main bearing inner ring; It is characterized in that: the screw stage casing of said nut has radially annular groove; The end face of the contiguous said main bearing of said nut is shaped on the screw that connects with said radially annular groove, and said nut is shaped on the slotted eye that connects with said radially annular groove away from the end face of said main bearing, and the screw that screws in said screw is housed in the said slotted eye.
2. bidirectional locking mechanism according to claim 1 is characterized in that: the sidewall of said nut offers the fixed hole that communicates with said annular groove, the inner is housed in the said fixed hole leans the fixing pin at said screw.
3. bidirectional locking mechanism according to claim 1 and 2 is characterized in that: the thread section of said main shaft is a trapezoidal thread, and said nut is a trapezoidal nut.
4. bidirectional locking mechanism according to claim 1 is characterized in that: said radially annular groove is uniformly distributed with setting along the central axis symmetry, and the width of said radially annular groove is less than the width of said screw upper end.
5. bidirectional locking mechanism according to claim 4 is characterized in that: said radially annular groove both sides are provided with chamfering.
6. bidirectional locking mechanism according to claim 2 is characterized in that: said fixed hole is vertical with said screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203365945U CN202266602U (en) | 2011-09-08 | 2011-09-08 | Bidirectional locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203365945U CN202266602U (en) | 2011-09-08 | 2011-09-08 | Bidirectional locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266602U true CN202266602U (en) | 2012-06-06 |
Family
ID=46157399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203365945U Expired - Fee Related CN202266602U (en) | 2011-09-08 | 2011-09-08 | Bidirectional locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781889A (en) * | 2016-03-09 | 2016-07-20 | 太原重工股份有限公司 | Wind power unit and wind wheel locking device thereof |
| CN109217620A (en) * | 2017-07-05 | 2019-01-15 | 先进科技新加坡有限公司 | Magnet assembly for electromagnetic motor |
-
2011
- 2011-09-08 CN CN2011203365945U patent/CN202266602U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781889A (en) * | 2016-03-09 | 2016-07-20 | 太原重工股份有限公司 | Wind power unit and wind wheel locking device thereof |
| CN109217620A (en) * | 2017-07-05 | 2019-01-15 | 先进科技新加坡有限公司 | Magnet assembly for electromagnetic motor |
| CN109217620B (en) * | 2017-07-05 | 2021-03-02 | 先进科技新加坡有限公司 | Magnet assembly for electromagnetic motor |
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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 |
Granted publication date: 20120606 Termination date: 20160908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |