CN101614234A - A kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw - Google Patents
A kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw Download PDFInfo
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- CN101614234A CN101614234A CN200910305694A CN200910305694A CN101614234A CN 101614234 A CN101614234 A CN 101614234A CN 200910305694 A CN200910305694 A CN 200910305694A CN 200910305694 A CN200910305694 A CN 200910305694A CN 101614234 A CN101614234 A CN 101614234A
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- swivel nut
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Abstract
The invention discloses a kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw; the present invention produces stop tooth on the external cylindrical surface of swivel nut one end that has outside thread and tapped hole; the tapped hole of matrix is made into the blind hole of step type; again a sawtooth stop ring with interior external tooth is squeezed in the big hole wall of base body pocket hole after swivel nut being screwed in the tapped hole of matrix; make the interlocking of sawtooth stop ring and matrix be one; and the internal tooth of sawtooth stop ring and the stop tooth of swivel nut are meshed; can prevent like this when bolt being screwed into or back-outing swivel nut; transmission takes place in swivel nut in matrix, thereby also can protect the tapped hole of matrix injury-free effectively.The present invention not only have with matrix be connected reliably, advantage that swivel nut can not rotate, but also have easy processing, easy to assembly and can effectively protect advantages such as matrix tapped hole.The present invention is particularly suitable for that each field such as Aeronautics and Astronautics is locking as important connection, the fastening piece of anti-rotation uses.
Description
Technical field
The present invention relates to a kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw, belong to the technical field that is threaded.
Background technique
At present, in the prior art in order to strengthen the intensity of low-intensity engineering material matrix tapped hole, general all the employing installed a swivel nut mode that has internal and external threads that adopts high-strength material to make additional in the tapped hole of low-intensity engineering material matrix, though adopt this mode can strengthen the tapped hole intensity of low-intensity engineering material matrix effectively, but because when adopting this mode, require swivel nut must be connected to an integral body with the tapped hole of matrix, can not become flexible, therefore requiring the outside thread of swivel nut must be the interference fit screw thread with the internal thread of the matrix that is cooperated, and the required precision of processing interference fit screw thread is high, its difficulty of processing is very big, often adopt the way of apolegamy, this not only causes the processing cost height, but also causes assembling difficulty, and if when assembling, control the bad softer matrix tapped hole of material that also can damage; And if swivel nut adopts conventional screw thread to be connected with the matrix screw; then in use, when bolt was screwed into or back-outs swivel nut, swivel nut was easy to rotate in the tapped hole of matrix; this has not only caused the trouble of using, but also has lost the purpose to the protection of matrix tapped hole.Therefore, that swivel nut is installed in the tapped hole of matrix is not ideal in the mode that strengthens low-intensity engineering material matrix tapped hole intensity for existing these.
Summary of the invention
The objective of the invention is to: provide a kind of that do not need to make the interference fit screw thread and be connected reliably, be difficult for loosening, processing with matrix and install all to be easy to the method and the sawtooth stop swivel nut that prevent that swivel nut rotates in the matrix screw, to overcome the deficiencies in the prior art.
The present invention is achieved in that a kind of method that prevents that swivel nut rotates in the matrix screw of the present invention is; be included in the tapped hole of matrix the swivel nut that has outside thread and tapped hole is installed; in the time of in the screw of matrix that swivel nut is packed into; earlier on the external cylindrical surface of swivel nut one end that has outside thread and tapped hole, produce the stop tooth that rotation inhibiting is used; the tapped hole of matrix is made into the blind hole of step type; and in the aperture of the blind hole of this step type, produce the internal thread that matches with the outside thread of swivel nut; then swivel nut is screwed in the tapped hole of matrix; make the stop tooth end face of swivel nut mutually concordant with the end face of matrix; then with the stop tooth of the internal tooth of a sawtooth stop ring with interior external tooth and swivel nut to good; mode by extruding embeds the external tooth of this sawtooth stop ring in the big hole wall of the step type blind hole of matrix into; make the interlocking of sawtooth stop ring and matrix be one; and the internal tooth of sawtooth stop ring and the stop tooth of swivel nut are meshed; can prevent like this when bolt being screwed into or back-outing swivel nut; transmission takes place in swivel nut in matrix, thereby also can protect the tapped hole of matrix injury-free effectively.
The material hardness of above-mentioned swivel nut and sawtooth stop ring and intensity all are higher than the hardness and the intensity of body material.
A kind of sawtooth stop swivel nut that is used for the inventive method is, comprise the swivel nut that is provided with outside thread and interior threaded hole, this sawtooth stop swivel nut is made up of swivel nut and sawtooth stop ring, on the external cylindrical surface of swivel nut one end, be provided with stop tooth, on the external cylindrical surface of sawtooth stop ring, be provided with external tooth, on the endoporus of sawtooth stop ring, be provided with internal tooth, and the sawtooth stop ring can be enclosed within on the stop tooth of swivel nut, and the internal tooth of sawtooth stop ring can with the stop tooth engagement of swivel nut.
On above-mentioned swivel nut, be provided with two symmetries be used to push make swivel nut can close up the distortion the circular arc straight trough.
The material of above-mentioned swivel nut and sawtooth stop ring is the 40CrNiMoA hardening high-strength steel.
Owing to adopted technique scheme, the present invention is screwed into swivel nut in the tapped hole of matrix, the external tooth of this sawtooth stop ring is embedded the mode of a sawtooth stop ring with interior external tooth by extruding in the big hole wall of the step type blind hole of matrix into then, make the interlocking of sawtooth stop ring and matrix be one, and the internal tooth of sawtooth stop ring and the stop tooth of swivel nut are meshed, can prevent that like this transmission takes place swivel nut when bolt being screwed into or back-outing swivel nut in matrix.Therefore swivel nut outside thread of the present invention does not need to be connected to interference fit with the internal thread of matrix and is threaded, only need the outside thread of swivel nut is processed as traditional regular screw threads, swivel nut and matrix can be connected as a single entity reliably, so not only can reduce requirement greatly to swivel nut outside thread machining accuracy, but also the unfailing performance that has improved installation efficiency and be threaded.So the present invention is compared with prior art, the present invention not only have with matrix be connected reliably, advantage that swivel nut can not rotate, but also have easy processing, easy to assembly and can effectively protect advantages such as matrix tapped hole.The present invention is particularly suitable for that each field such as Aeronautics and Astronautics is locking as important connection, the fastening piece of anti-rotation uses.
Description of drawings
Fig. 1 is the structural representation of sawtooth stop swivel nut of the present invention when being connected with matrix;
Fig. 2 is a screw bushing structure schematic representation of the present invention;
Fig. 3 is the right TV structure schematic representation of Fig. 2;
Fig. 4 is a sawtooth stop ring structural representation of the present invention.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as the foundation of the utility model being done any restriction.
Embodiments of the invention: sawtooth stop swivel nut of the present invention is formed (as Fig. 2, Fig. 3 and shown in Figure 4) by swivel nut 1 and sawtooth stop ring 2, on the external cylindrical surface of swivel nut 1 one ends, produce stop tooth 1-1, on the external cylindrical surface of sawtooth stop ring 2, produce external tooth 2-1, in the endoporus of sawtooth stop ring 2, produce internal tooth 2-2, sawtooth stop ring 2 can be enclosed within on the stop tooth 1-1 of swivel nut 1, and the internal tooth 2-2 of sawtooth stop ring 2 can be meshed with the stop tooth 1-1 of swivel nut 1; In order to make swivel nut have auto-lock function, (the circular arc straight trough 1-2 of two symmetries of making makes the internal thread of swivel nut can produce slight distortion to make the circular arc straight trough 1-2 that swivel nut can be closed up be out of shape that is used to push of two symmetries on swivel nut 1, reach the purpose of self-locking, owing to inside and outside the swivel nut screw thread is arranged all, when extruding is closed up, the location was relatively more difficult when a circular arc straight trough closed up, the screw thread of damaging easily, so adopt the circular arc straight trough of two symmetries, just very convenient during closing in, and the closing in frock is simple and easy to processing), adopt the fashion of extrusion of transmission swivel nut 1 extrusion-deformation to be become the sub-elliptical shape simultaneously by circular arc straight trough 1-2, when bolt 4 was screwed into swivel nut 1,1 pair of bolt 4 of swivel nut had the self-lock force of a pretension like this; The tapped hole of matrix 3 is made into the blind hole of step type; and in the aperture of the blind hole of this step type, produce the internal thread that matches with the outside thread of swivel nut 1; then swivel nut 1 is screwed in the tapped hole of matrix 3; make the stop tooth 1-1 end face of swivel nut 1 mutually concordant with the end face of matrix 3; then with the stop tooth 1-1 of the internal tooth 2-2 of sawtooth stop ring 2 and swivel nut 1 to good; mode by extruding embeds the external tooth 2-1 of sawtooth stop ring 2 in the big hole wall of the step type blind hole of matrix 3 into; can make sawtooth stop ring 2 and matrix 3 interlockings be one like this; make the stop tooth 1-1 engagement of the internal tooth 2-2 and the swivel nut 1 of sawtooth stop ring 2 simultaneously; can prevent effectively like this when bolt 4 being screwed into or back-outing swivel nut 1; transmission takes place in swivel nut 1 in matrix 3, thereby also can protect the tapped hole of matrix 3 injury-free effectively (as shown in Figure 1).During making, make the material hardness of swivel nut 1 and sawtooth stop ring 2 and hardness and the intensity that intensity all is higher than matrix 3 materials.Generally, the material of swivel nut 1 and sawtooth stop ring 2 preferably adopts the 40CrNiMoA hardening high-strength steel to get final product.
Claims (5)
1. method that prevents that swivel nut in the matrix screw from rotating; be included in the tapped hole of matrix the swivel nut that has outside thread and tapped hole is installed; it is characterized in that: on the external cylindrical surface of swivel nut one end that has outside thread and tapped hole, produce the stop tooth that rotation inhibiting is used earlier; the tapped hole of matrix is made into the blind hole of step type; and in the aperture of the blind hole of this step type, produce the internal thread that matches with the outside thread of swivel nut; then swivel nut is screwed in the tapped hole of matrix; make the stop tooth end face of swivel nut mutually concordant with the end face of matrix; then with the stop tooth of the internal tooth of a sawtooth stop ring with interior external tooth and swivel nut to good; mode by extruding embeds the external tooth of this sawtooth stop ring in the big hole wall of the step type blind hole of matrix into; make the interlocking of sawtooth stop ring and matrix be one; and the internal tooth of sawtooth stop ring and the stop tooth of swivel nut are meshed; can prevent like this when bolt being screwed into or back-outing swivel nut; transmission takes place in swivel nut in matrix, thereby also can protect the tapped hole of matrix injury-free effectively.
2. the method that prevents that swivel nut rotates in the matrix screw according to claim 1, it is characterized in that: the material hardness of swivel nut and sawtooth stop ring and intensity all are higher than the hardness and the intensity of body material.
3. sawtooth stop swivel nut, comprise the swivel nut (1) that is provided with outside thread and interior threaded hole, it is characterized in that: this sawtooth stop swivel nut is made up of swivel nut (1) and sawtooth stop ring (2), on the external cylindrical surface of swivel nut (1) one end, be provided with stop tooth (1-1), on the external cylindrical surface of sawtooth stop ring (2), be provided with external tooth (2-1), on the endoporus of sawtooth stop ring (2), be provided with internal tooth (2-2), and sawtooth stop ring (2) can be enclosed within on the stop tooth (1-1) of swivel nut (1), and the internal tooth (2-2) of sawtooth stop ring (2) can mesh with the stop tooth (1-1) of swivel nut (1).
4. sawtooth stop swivel nut according to claim 3 is characterized in that: on swivel nut (1), be provided with two symmetries be used to push make swivel nut can close up the distortion circular arc straight trough (1-2).
5. sawtooth stop swivel nut according to claim 3 is characterized in that: the material of swivel nut (1) and sawtooth stop ring (2) is the 40CrNiMoA hardening high-strength steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910305694A CN101614234A (en) | 2009-08-17 | 2009-08-17 | A kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910305694A CN101614234A (en) | 2009-08-17 | 2009-08-17 | A kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw |
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| Publication Number | Publication Date |
|---|---|
| CN101614234A true CN101614234A (en) | 2009-12-30 |
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| CN200910305694A Pending CN101614234A (en) | 2009-08-17 | 2009-08-17 | A kind of method and sawtooth stop swivel nut that prevents that swivel nut rotates in the matrix screw |
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| CN (1) | CN101614234A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767556A (en) * | 2012-07-18 | 2012-11-07 | 西安航空制动科技有限公司 | Punched point anti-loosening method for sunk screw connection |
| CN103939449A (en) * | 2014-04-10 | 2014-07-23 | 哈尔滨东安发动机（集团）有限公司 | Stop threaded sleeve |
| CN105485133A (en) * | 2015-12-09 | 2016-04-13 | 中国南方航空工业(集团)有限公司 | Stud connecting structure for connecting gas turbine case and gas turbine |
| CN105650094A (en) * | 2016-03-14 | 2016-06-08 | 北京首航科学技术开发有限公司 | Self-locking swivel nut and connecting assembly with self-locking swivel nut |
| CN107191460A (en) * | 2017-05-17 | 2017-09-22 | 贵州航天精工制造有限公司 | A kind of doubling plate connects plug |
| CN107327465A (en) * | 2017-08-21 | 2017-11-07 | 贵州航太精密制造有限公司 | A kind of quick-release screw assembly |
| CN111843421A (en) * | 2020-08-04 | 2020-10-30 | 中国工程物理研究院总体工程研究所 | Auxiliary anti-rotation method for assembly body containing micro-gap dissimilar material and application |
| CN112629387A (en) * | 2020-12-11 | 2021-04-09 | 北京星航机电装备有限公司 | Qualified judging device for coaxiality of internal and external threads of threaded sleeve |
| TWI742301B (en) * | 2017-08-16 | 2021-10-11 | 美商賓工程工廠公司 | Insert fastener with a compression sleeve, assembly comprising the same, and method of installing an insert into a panel |
| CN114799745A (en) * | 2022-04-07 | 2022-07-29 | 江苏天钧精密技术有限公司 | Production method of steel wire thread insert capable of being rapidly installed and steel wire thread insert |
-
2009
- 2009-08-17 CN CN200910305694A patent/CN101614234A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767556A (en) * | 2012-07-18 | 2012-11-07 | 西安航空制动科技有限公司 | Punched point anti-loosening method for sunk screw connection |
| CN103939449A (en) * | 2014-04-10 | 2014-07-23 | 哈尔滨东安发动机（集团）有限公司 | Stop threaded sleeve |
| CN105485133A (en) * | 2015-12-09 | 2016-04-13 | 中国南方航空工业(集团)有限公司 | Stud connecting structure for connecting gas turbine case and gas turbine |
| CN105650094A (en) * | 2016-03-14 | 2016-06-08 | 北京首航科学技术开发有限公司 | Self-locking swivel nut and connecting assembly with self-locking swivel nut |
| CN107191460A (en) * | 2017-05-17 | 2017-09-22 | 贵州航天精工制造有限公司 | A kind of doubling plate connects plug |
| TWI742301B (en) * | 2017-08-16 | 2021-10-11 | 美商賓工程工廠公司 | Insert fastener with a compression sleeve, assembly comprising the same, and method of installing an insert into a panel |
| CN107327465A (en) * | 2017-08-21 | 2017-11-07 | 贵州航太精密制造有限公司 | A kind of quick-release screw assembly |
| CN111843421A (en) * | 2020-08-04 | 2020-10-30 | 中国工程物理研究院总体工程研究所 | Auxiliary anti-rotation method for assembly body containing micro-gap dissimilar material and application |
| CN112629387A (en) * | 2020-12-11 | 2021-04-09 | 北京星航机电装备有限公司 | Qualified judging device for coaxiality of internal and external threads of threaded sleeve |
| CN114799745A (en) * | 2022-04-07 | 2022-07-29 | 江苏天钧精密技术有限公司 | Production method of steel wire thread insert capable of being rapidly installed and steel wire thread insert |
| CN114799745B (en) * | 2022-04-07 | 2024-01-23 | 江苏天钧精密技术有限公司 | Production method of steel wire thread insert capable of being rapidly installed and steel wire thread insert |
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Application publication date: 20091230 |