CN201891716U - Locking device of nut - Google Patents
Locking device of nut Download PDFInfo
- Publication number
- CN201891716U CN201891716U CN2010206380923U CN201020638092U CN201891716U CN 201891716 U CN201891716 U CN 201891716U CN 2010206380923 U CN2010206380923 U CN 2010206380923U CN 201020638092 U CN201020638092 U CN 201020638092U CN 201891716 U CN201891716 U CN 201891716U
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- China
- Prior art keywords
- self
- nut
- locking
- locking nut
- spring
- 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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Abstract
The utility model relates to a locking device of a nut, which comprises a support seat which is provided with an anti-rotation groove and a neck, a spring and a self-locking nut. The locking device of the nut is realized in the following way: the spring is firstly snapped into the neck, the self-locking nut is pushed from an opening end of the spring into the support seat, the opening end of the spring and two parallel edges of the self-locking nut are consistent with the opening direction of the anti-rotation groove, and the two parallel edges of the self-locking nut are matched with two parallel edges of the anti-rotation groove. The locking device has double anti-loosing and anti-dropping functions, so the connection of equipment and a machine body is more reliable. Once the locking torque is decreased, only the self-locking nut is required to be replaced. The self-locking nut can be replaced when the self-locking nut is pushed out from the support seat, so the replacing speed is fast, and the examination progress and the work efficiency of airplane auxiliary equipment can be improved.
Description
Technical field
The utility model relates to a kind of mechanical locking device, particularly a kind of locking device of nut.
Background technique
Aboard, all adopted hexagonal self-locking nut and bolt that equipment is connected on the body in the past, in complex operating environment, the hexagonal self-locking nut still may be because the locking torque disappearance, lose the locking effect, the equipment of connection is come off from body, thereby cause the afunction of equipment, produce security incident.According to occurring the situation that self-locking nut comes off in the maintenance process, the structure of self-locking nut is redesigned.
The model utility content
The technical problems to be solved in the utility model provides a kind of locking nut that improves the mechanized equipment connection reliability.
Locking device comprises: the bearing, spring, the self-locking nut which is provided with anti-rotation groove and draw-in groove.
The locking device of nut is achieved in that and earlier spring is snapped in the draw-in groove, again self-locking nut is pushed bearing from the opening end of spring, two parallel edges of the opening end of spring, self-locking nut should be consistent with the opening direction of anti-rotation groove, and two parallel edges of self-locking nut match with two parallel edges of anti-rotation groove.
This locking device has the function of dual locking, Drop-proof, make being connected of equipment and body reliable more in case locking torque decline occurs, only need to change self-locking nut, during replacing self-locking nut is got final product from the bearing release, replacing speed is fast, makes the maintenance progress and the working efficiency of some auxiliary equipment of aircraft be improved.
Description of drawings
Fig. 1 is the structural representation of plan view of the locking device of the utility model nut;
Fig. 2 is the structural representation of the A-A sectional view of Fig. 1;
Fig. 3 is the plan view of the locking device bearing of the utility model nut;
Fig. 4 is the plan view of bearing of the locking device of the utility model nut;
Fig. 5 is the plan view of self-locking nut of the locking device of the utility model nut;
Fig. 6 is the structural representation of the B-B sectional view of Fig. 5;
Fig. 7 is the structural representation of spring of the locking device of the utility model nut;
Embodiment
Fig. 1 is a structural representation of the present utility model, and locking device comprises as can be seen from Figure: bearing 1, spring 2, self-locking nut 3.Process a rotation slot 5 and a spring card slot 6 that prevents that nut from rotating on bearing 1, bearing 1 is fixed on the body by mounting hole 4.Before use, spring 2 is packed in the draw-in groove 6, then self-locking nut 3 is pushed anti-rotation groove 5 on the bearing 1 from spring 2 opening ends in, formed an integral body.When taking out self-locking nut 3, its opening end along spring 2 is applied certain thrust, just can take out self-locking nut 3 from bearing 1, replacing speed is fast, therefore has quick-replaceable function; Self-locking nut 3 is through bottling technique, have certain anti-loosening function and produced certain locking torque, self-locking nut 3 base flange are die-cut to have produced two parallel limits, with formed certain interval after anti-rotation groove 5 assembling on the bearing, so just prevent the nut rotation, formed dual locking functions.
In order to guarantee the reliability of this locking device,, all made concrete requirement to the raw material of part and every performance index that will reach.Be mainly:
1, bearing 1 adopts the high temperature resistant stainless steel material, by heat rammer shaping, heat treatment, machine add, flaw detection, surface-treated process program, make mechanical performance of products meet design requirement;
2, self-locking nut 3 adopts high-temperature alloy materials, by heat rammer shaping, heat treatment, machine add, closing in, flaw detection, surface-treated process program, make the locking torque of product and every performance index satisfy usage requirement;
3, spring 2 adopts high temperature resistant stainless steel silk material, by coiling, heat treatment, surface-treated process program, makes the performance index of spring 2 satisfy usage requirement.
This locking device has carried out structural design according to the problem of finding in the maintenance process in the past again to self-locking nut 3, even after the locking torque of self-locking nut 3 disappears, self-locking nut 3 still can be from loose or dislocation on the bolt, and what not guarantee to connect is reliable.
Claims (1)
1. the locking device of a nut comprises self-locking nut (3), and it is characterized in that: described locking device also comprises:
-bearing (1) which is provided with anti-rotation groove (5) and draw-in groove (6);
-spring (2);
The locking device of described nut is achieved in that and earlier spring (2) is snapped in the draw-in groove (6), again self-locking nut (3) is pushed bearing (1) from the opening end of spring, two parallel edges of the opening end of described spring (2), self-locking nut (3) should be consistent with the opening direction of anti-rotation groove (5), and two parallel edges of described self-locking nut (3) match with two parallel edges of anti-rotation groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206380923U CN201891716U (en) | 2010-12-02 | 2010-12-02 | Locking device of nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206380923U CN201891716U (en) | 2010-12-02 | 2010-12-02 | Locking device of nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891716U true CN201891716U (en) | 2011-07-06 |
Family
ID=44221193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206380923U Expired - Fee Related CN201891716U (en) | 2010-12-02 | 2010-12-02 | Locking device of nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834326A (en) * | 2016-06-06 | 2016-08-10 | 贵州航太精密制造有限公司 | Self-locking nut closing tool |
| CN109927868A (en) * | 2019-01-31 | 2019-06-25 | 武汉船用机械有限责任公司 | The fixed structure of tuning for Controllable Pitch Propeller |
-
2010
- 2010-12-02 CN CN2010206380923U patent/CN201891716U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834326A (en) * | 2016-06-06 | 2016-08-10 | 贵州航太精密制造有限公司 | Self-locking nut closing tool |
| CN109927868A (en) * | 2019-01-31 | 2019-06-25 | 武汉船用机械有限责任公司 | The fixed structure of tuning for Controllable Pitch Propeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20111202 |