CN203404214U - Heavy load self-positioning threaded connecting assembly - Google Patents
Heavy load self-positioning threaded connecting assembly Download PDFInfo
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- CN203404214U CN203404214U CN201320400491.XU CN201320400491U CN203404214U CN 203404214 U CN203404214 U CN 203404214U CN 201320400491 U CN201320400491 U CN 201320400491U CN 203404214 U CN203404214 U CN 203404214U
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- self
- align
- heavy
- load type
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Abstract
A heavy load self-positioning threaded connecting assembly is mainly composed of a bolt, a self-positioning nut and a preassembled screw. The bolt comprises a head portion and a rod portion. The end, far away from the head portion, of the outer ring of the rod portion is provided with outer threads A, the inner side of the portion, close to the bottom end, of the rod portion is provided with inner threads A, the end close to the inner threads is provided with a plug hole and a pin hole perpendicularly penetrating through the plug hole, the self-positioning nut is connected with the outer threads A through inner threads B, the preassembled screw is connected with the inner threads A through outer threads B, a spring is installed in the plug hole, a safety pin is installed in the pin hole, a check ring is arranged between the spring and the safety pin, and a limiting plug is arranged between the safety pin and the preassembled screw. The heavy load self-positioning threaded connecting assembly is easy to manufacture, convenient to use, high in safe reliability, convenient to maintain and capable of satisfying the use requirements for the improvement of the safe reliability.
Description
Technical field
The utility model belongs to and is fastenedly connected technical field, relates to the self-align screwed assembly of a kind of heavy-load type.
Background technique
In aerospace vehicle Element Design, the people of technical field of fastening all know, high-performance fastening piece is very expensive.Yet the safety reliability of fastening piece is a parameter of most critical.Especially on the high-speed aircraft of aerospace vehicle, safety reliability is all very, and the slightest difference will cause catastrophic consequence.Therefore the requirement that the reliability that plain bolt nut assembly connects does not just reach high safety reliability.Although and with the nut safety reliability of self-locking moment, greatly improve, As time goes on, self-locking moment is because the creep of material weakens.Thereby increased risk factor, reduced safety coefficient.Need periodic replacement, not only increased maintenance cost, also reduce safety coefficient.For separating the Safety performance that improves fastening piece, on some bolt, increase insurance hole, nut is opened safety groove, with arming pin, pass the insurance hole of bolt and the safety groove of nut again, but such arming pin easily comes off, and inconvenient while safeguarding, aspect safety reliability, can not meet the demands, because its safety reliability is poor, often cause the flight safety coefficient of aerospace vehicle low high with maintenance cost.
Model utility content
In order to address the above problem, the utility model provides a kind of heavy-load type self-align screwed assembly.
The utility model is achieved by following technical solution.
The self-align screwed assembly of a kind of heavy-load type, mainly by bolt, self-align nut and prepackage screw form, described bolt comprises head and bar portion, on bar portion cylindrical, away from head one end, be provided with outside thread A, in inner side, rod portion bottom, be provided with internal thread A, near internal thread A one end, be provided with consent and the pin-and-hole be mutually used to vertical with consent, described self-align nut is connected with outside thread A by internal thread B, pre-cartridge screw is connected with internal thread A by outside thread B, spring is installed in consent, pin-and-hole is provided with safety pin, between spring and safety pin, be provided with back-up ring, between safety pin and pre-cartridge screw, be provided with limit plunger.
Described self-align nut is provided with reinforces round platform, twisting hexagonal and 45 ° of anti-rotation security card slot.
Described pre-cartridge screw comprises cylindrical body and is arranged at twisting face and the top platform B on cylindrical body.
Described limit plunger comprises cylindrical cock body and is arranged at transition sloping platform, top platform A and the 45 ° of sliding plugs on cylindrical cock body.
Described safety pin comprises cylindrical shank, is provided with 45 ° of wedge shapes on shank top, and middle part is provided with 45 ° of sliding-grooves, and bottom is provided with round crown head.
Described back-up ring comprises cylindrical back-up ring body and limited impression.
Described spring comprises spring body and is arranged at the parallel cutting surfaces at spring body two ends, and parallel cutting surfaces one end coordinates with the limited impression of back-up ring, and the other end coordinates with the bottom of the inner consent of bolt.
Described 45 ° of wedge shapes coordinate with 45 ° of anti-rotation security card slot of self-align nut, and 45 ° of sliding-grooves coordinate with 45 ° of sliding plugs of limit plunger.
Described bolt is provided with catch near internal thread one end.
The beneficial effects of the utility model are:
Compared with prior art, the utility model is by adopting self-align nut and safety pin to be connected, can regulate according to the thickness of interlayer, by 45 ° of wedge-like engagement on a plurality of 45 ° of anti-rotation security card slot and safety pin are set on self-align nut, both are coordinated with any draw-in groove and play self-align function.The utility model is made simple, and easy to use, safety reliability is high, easy to maintenance.Can meet the self-align fastening piece usage requirement of high safety reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is blast structural representation of the present utility model;
Fig. 3 is the cross-sectional view of bolt in the utility model;
Fig. 4 is the perspective view of bolt in the utility model;
Fig. 5 is the structural representation of the utility model medi-spring;
Fig. 6 is the structural representation of the utility model guide ring;
Fig. 7 is the structural representation of safety pin in the utility model;
Fig. 8 is the structural representation of limit plunger in the utility model;
Fig. 9 is the cross-sectional view of self-align nut in the utility model;
Figure 10 is the perspective view of self-align nut in the utility model;
Figure 11 is the structural representation of pre-cartridge screw in the utility model;
Figure 12 is application example figure of the present utility model.
In figure: 1-bolt, 2-spring, 3-back-up ring, 4-safety pin, 5-limit plunger, the self-align nut of 6-, the pre-cartridge screw of 7-, 8-head, 9-bar portion, 10-outside thread A, 11-pin-and-hole, 12-consent, 13-catch, 14-internal thread A, 15-spring body, 16-parallel cutting surfaces, the cylindrical back-up ring body of 17-, 18-limited impression, the cylindrical shank of 19-, 20-45 ° of wedge shape, 21-45 ° of sliding-groove, 22-circle crown head, the cylindrical cock body of 23-, 24-transition sloping platform, 25-top platform A, 26-45 ° of sliding plug, 27-internal thread B, 28-reinforces round platform, 29-twisting hexagonal, 30-45 ° of anti-rotation security card slot, 31-cylindrical body, 32-twisting face, 33-outside thread B, 34-top platform B, 35-plate to be connected.
Embodiment
Below in conjunction with accompanying drawing, further describe the technical solution of the utility model, but described in claimed scope is not limited to.
As shown in Figures 1 to 4, the self-align screwed assembly of a kind of heavy-load type, mainly by bolt 1, self-align nut 6 and pre-cartridge screw 7 form, described bolt 1 comprises head 8 and bar portion 9, on bar portion 9 cylindricals, away from head 8 one end, be provided with outside thread A10, in rod portion 9 inner sides, bottom, be provided with internal thread A14, near internal thread A14 one end, be provided with consent 12 and the pin-and-hole be mutually used to 11 vertical with consent 12, described self-align nut 6 is connected with outside thread A10 by internal thread B27, pre-cartridge screw 7 is connected with internal thread A14 by outside thread B33, spring 2 is installed in consent 12, pin-and-hole 11 is provided with safety pin 4, between spring 2 and safety pin 4, be provided with back-up ring 3, between safety pin 4 and pre-cartridge screw 7, be provided with limit plunger 5.
As shown in Figure 9, Figure 10, described self-align nut 6 is provided with and reinforces round platform 28, twisting hexagonal 29 and 45 ° of anti-rotation security card slot 30.In the technical program, self-locating function mainly has a segment length by 45 ° of anti-rotation security card slot 30 on self-align nut 6, and quantity is a plurality of, and 20 of 45 ° of wedge shapes of safety pin 4 move up and down.Can regulate according to the thickness of interlayer, after having regulated, both play self-align function with any draw-in groove at cooperation.And after 45 ° of anti-rotation security card slot 30 of self-align nut 6 and 45 ° of wedge shapes of safety pin 4 20 coordinate, change the direction of bearing capacity, axial moment is changed into tangent line moment.
As shown in figure 11, described pre-cartridge screw 7 comprises cylindrical body 31 and is arranged at twisting face 32 and the top platform B34 on cylindrical body 31.
As shown in Figure 8, described limit plunger 5 comprises cylindrical cock body 23 and is arranged at transition sloping platform 24, top platform A25 and the 45 ° of sliding plugs 26 on cylindrical cock body 23.
As shown in Figure 7, described safety pin 4 comprises cylindrical shank 19, on shank 19 tops, is provided with 45 ° of wedge shapes 20, and middle part is provided with 45 ° of sliding-grooves 21, and bottom is provided with round crown head 22.
As shown in Figure 6, described back-up ring 3 comprises cylindrical back-up ring body 17 and limited impression 18.
As shown in Figure 5, described spring 2 comprises spring body 15 and is arranged at the parallel cutting surfaces 16 at spring body 15 two ends, and parallel cutting surfaces 16 one end coordinate with the limited impression 18 of back-up ring 3, and the other end coordinates with the bottom of the inner consent 12 of bolt 1.
Described 45 ° of wedge shapes 20 coordinate with 45 ° of anti-rotation security card slot 30 of self-align nut 6, and 45 ° of sliding-grooves 21 coordinate with 45 ° of sliding plugs 26 of limit plunger 5.In use 45 ° of sliding-grooves 21 are controlled the height of safety pin 4 with the mutual vertical motion of 45 ° of sliding plugs 26 of limit plunger 5.
As shown in Figure 3, described bolt 1 is provided with catch 13 near internal thread 14 one end.
In the technical program, described head 8 and bar portion 9 are not restricted, can be for countersunk head, tack, round end etc., as long as meet installation requirement; Adding man-hour, outside thread A10 coordinates with the internal thread B27 of self-align nut 6; Pin-and-hole 11 coordinates with safety pin 4; Consent 12 and catch 13 coordinate with limit plunger 5; Internal thread A14 coordinates with the outside thread B33 of pre-cartridge screw 7.
As shown in Fig. 3, Figure 10, in use, the internal thread A14 that first pre-cartridge screw 7 is screwed into bolt 1 promotes limit plunger 5 to the utility model, utilizes the mutual vertical motion of safety pin 4 of 45 ° of sliding-grooves 21 of limit plunger 5 cooperations of 45 ° of sliding plugs 26, safety pin 4 is moved down, simultaneously Compress Spring 2 energy storage.Then bolt assembly is passed to plate 35 to be connected, be screwed into self-align nut 6 to the pre-cartridge screw 7 of back-outing behind precalculated position, spring 2 is upheld and promote back-up ring 3 and limit plunger 5, limit plunger 5 and the mutual vertical motion of safety pin 4, make to move on safety pin 4,45 ° of wedge shapes 20 of safety pin 4 coordinate with 45 ° of anti-rotation security card slot 30 of self-align nut 6.
Claims (9)
1. the self-align screwed assembly of heavy-load type, mainly by bolt (1), self-align nut (6) and pre-cartridge screw (7) form, it is characterized in that: described bolt (1) comprises head (8) and bar portion (9), on bar portion (9) cylindrical, away from head (8) one end, be provided with outside thread A(10), in inner side, rod portion (9) bottom, be provided with internal thread A(14), near internal thread A(14) one end be provided with consent (12) with the vertical pin-and-hole of being used to mutually of consent (12) (11), described self-align nut (6) is by internal thread B(27) with outside thread A(10) be connected, pre-cartridge screw (7) is by outside thread B(33) with internal thread A(14) be connected, spring (2) is installed in consent (12), pin-and-hole (11) is provided with safety pin (4), between spring (2) and safety pin (4), be provided with back-up ring (3), between safety pin (4) and pre-cartridge screw (7), be provided with limit plunger (5).
2. the self-align screwed assembly of a kind of heavy-load type according to claim 1, is characterized in that: described self-align nut (6) is provided with reinforces round platform (28), twisting hexagonal (29) and 45 ° of anti-rotation security card slot (30).
3. the self-align screwed assembly of a kind of heavy-load type according to claim 1, is characterized in that: described pre-cartridge screw (7) comprises cylindrical body (31) and is arranged at twisting face (32) and the top platform B(34 on cylindrical body (31)).
4. the self-align screwed assembly of a kind of heavy-load type according to claim 1, is characterized in that: described limit plunger (5) comprises cylindrical cock body (23) and is arranged at transition sloping platform (24), the top platform A(25 on cylindrical cock body (23)) and 45 ° of sliding plugs (26).
5. the self-align screwed assembly of a kind of heavy-load type according to claim 1, it is characterized in that: described safety pin (4) comprises cylindrical shank (19), on shank (19) top, be provided with 45 ° of wedge shapes (20), middle part is provided with 45 ° of sliding-grooves (21), and bottom is provided with round crown head (22).
6. the self-align screwed assembly of a kind of heavy-load type according to claim 1, is characterized in that: described back-up ring (3) comprises cylindrical back-up ring body (17) and limited impression (18).
7. the self-align screwed assembly of a kind of heavy-load type according to claim 1, it is characterized in that: described spring (2) comprises spring body (15) and is arranged at the parallel cutting surfaces (16) at spring body (15) two ends, parallel cutting surfaces (16) one end coordinates with the limited impression (18) of back-up ring (3), and the other end coordinates with the bottom of the inner consent of bolt (1) (12).
8. the self-align screwed assembly of a kind of heavy-load type according to claim 5, it is characterized in that: described 45 ° of wedge shapes (20) coordinate with 45 ° of anti-rotation security card slot (30) of self-align nut (6), 45 ° of sliding-grooves (21) coordinate with 45 ° of sliding plugs (26) of limit plunger (5).
9. the self-align screwed assembly of a kind of heavy-load type according to claim 2, is characterized in that: described bolt (1) is provided with catch (13) near internal thread (14) one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400491.XU CN203404214U (en) | 2013-07-05 | 2013-07-05 | Heavy load self-positioning threaded connecting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400491.XU CN203404214U (en) | 2013-07-05 | 2013-07-05 | Heavy load self-positioning threaded connecting assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404214U true CN203404214U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320400491.XU Expired - Fee Related CN203404214U (en) | 2013-07-05 | 2013-07-05 | Heavy load self-positioning threaded connecting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404214U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410835A (en) * | 2013-07-05 | 2013-11-27 | 贵州航天精工制造有限公司 | Heavy-load type self-positioning threaded connection assembly and application method thereof |
-
2013
- 2013-07-05 CN CN201320400491.XU patent/CN203404214U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410835A (en) * | 2013-07-05 | 2013-11-27 | 贵州航天精工制造有限公司 | Heavy-load type self-positioning threaded connection assembly and application method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20160705 |