CN113007198A - Method for designing fastening and anti-loosening device and connecting fastening and anti-loosening bolt - Google Patents
Method for designing fastening and anti-loosening device and connecting fastening and anti-loosening bolt Download PDFInfo
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- CN113007198A CN113007198A CN202110387921.8A CN202110387921A CN113007198A CN 113007198 A CN113007198 A CN 113007198A CN 202110387921 A CN202110387921 A CN 202110387921A CN 113007198 A CN113007198 A CN 113007198A
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- Prior art keywords
- annular
- screw
- loosening
- fastening
- annular gasket
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012856 packing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0208—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread using panel fasteners, i.e. permanent attachments allowing for quick assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention provides a method for connecting a fastening anti-loosening device and a bolt to fasten and prevent loosening, which relates to the technical field of screw fastening and loosening prevention and comprises a screw and a loosening prevention structure, wherein a connecting piece A and a connecting piece B are sleeved on the surface of the screw, a nut is sleeved on the surface of the screw in a threaded manner, the loosening prevention structure is arranged on the surface of the screw and comprises a first annular gasket, the inner wall of the first annular gasket is movably connected with the screw, a second annular gasket and an annular spring are sleeved on the surface of the screw, and the annular spring is positioned between the first annular gasket and the second annular gasket. The invention solves the problems that the existing anti-loosening method is not abundant enough and has advantages and disadvantages, particularly the problem that the elastic washer and the belleville spring washer have limited rebound force generated by the compression of the elastic washer and the belleville spring washer in friction anti-loosening, and the fastening anti-loosening effect of the anti-loosening method has obvious limitation.
Description
Technical Field
The invention relates to the technical field of screw fastening and looseness prevention, in particular to a method for fastening and looseness prevention of a fastening and looseness prevention device and bolt connection.
Background
In order to meet the requirements of consumers on the safety and reliability of products, particularly the long-term safety requirements of bolt connection structures bearing vibration loads, a fastening anti-loosening technology plays an extremely important role, common anti-loosening methods mainly comprise friction anti-loosening, mechanical anti-loosening and permanent anti-loosening, common friction anti-loosening is mainly realized by gaskets (such as elastic washers, disc spring washers and toothed anti-loosening washers), self-locking nuts, double nuts, elastic ring nuts and the like, and the main principle is that the pressing force and the friction force between bolt connection threads are increased through generated additional self-generating external force, so that the anti-loosening is realized.
The method for realizing the anti-loosening by additionally arranging the gasket mainly adopts several forms of an elastic gasket, a disc spring gasket, a toothed anti-loosening gasket and the like; however, the existing anti-loosening methods are not abundant enough, and have advantages and disadvantages, and especially for the problem that the elastic washer and the disc spring washer are limited in rebound force generated by pressing during friction anti-loosening, the fastening anti-loosening effect is also obviously limited.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a fastening and anti-loosening device and a method for fastening and preventing loosening of a bolt connection.
In order to achieve the purpose, the invention adopts the following technical scheme: the anti-loosening device comprises a screw and an anti-loosening structure, wherein a connecting piece A and a connecting piece B are sleeved on the surface of the screw, a nut is sleeved on the surface of the screw in a threaded manner, the anti-loosening structure is arranged on the surface of the screw and comprises a first annular gasket, the inner wall of the first annular gasket is movably connected with the screw, and a second annular gasket and an annular spring are sleeved on the surface of the screw.
Preferably, the annular spring is located between the first annular washer and the second annular washer.
Preferably, the outer diameter of the first annular gasket is smaller than that of the second annular gasket, or the outer diameter of the first annular gasket is equal to that of the second annular gasket, so that the first annular gasket and the second annular gasket are buckled with each other, and anti-skid protrusions are fixedly connected to the surfaces of the first annular gasket and the second annular gasket.
Preferably, the distance between the first annular gasket and the second annular gasket is greater than zero after the first annular gasket and the second annular gasket are screwed to reach the falling limit of the annular spring.
Preferably, the coils of the annular spring are designed with an inclination angle α in the circumferential direction of the annulus, i.e. in the direction of rotation in which tightening is achieved.
Preferably, the method comprises the following steps:
s1, inserting the screw into the connecting piece A and the connecting piece B to make the connecting piece A cling to the head of the screw;
s2, sleeving the first annular gasket on the surface of the screw and enabling the first annular gasket to be in contact with the connecting piece B;
s3, sleeving the annular spring on the surface of the screw, and sleeving the second annular gasket on the surface of the screw after the annular spring is sleeved, so that the annular spring is positioned between the first annular gasket and the second annular gasket;
s4, sleeving the nut on the surface of the screw, and screwing the nut by using a tool to enable the nut to be close to the anti-loose structure;
and S5, pressing the nut to the anti-loosening structure, wherein the first annular washer and the second annular washer simultaneously press the annular spring, and the annular spring can tilt along the circumference to generate a rebound force to realize the anti-loosening.
Compared with the prior art, the invention has the advantages and positive effects that:
in the invention, by arranging the anti-loosening device, when the connecting piece A and the connecting piece B are required to be connected together, the connecting piece A and the connecting piece B are firstly sleeved on the surface of a screw and are tightly attached to the head of the screw, then the anti-loosening device is sleeved on the surface of the screw, then a nut is screwed on the surface of the screw by a tool, when the nut extrudes the anti-loosening structure, the novel anti-loosening device is compressed by the screwing force of the nut, an annular spring arranged in the anti-loosening structure can incline along a circumference under the action of the compression force, each spiral turn of the annular spring can generate a continuous elastic force, the annular spring has the superposition of the bounce of N spiral turns by the elastic resultant force generated by the N spiral turns, the superposition can be multiplied by the elastic force generated by the traditional elastic washer, and then the elastic force enables a thread connecting pair of the nut and the screw to continuously maintain a pressing, thereby produce the moment of resistance, realize preventing the not hard up effect of nut, wherein the non-slip raised has played and has made the annular spring can topple over fast when first annular packing ring and second annular packing ring relative rotation, wherein the inclination alpha scope of annular spring is 0 ^ 90 < for more than alpha, realize toppling over when being convenient for receive the nut and screw, whole structure has solved existing locking method and has not abundant enough, and each has the merit shortcoming, especially to the locking elasticity packing ring that has elasticity of friction, the limited problem of the bounce that belleville spring packing ring pressurized produced, the locking effect of its fastening still has the problem of obvious limitation.
Drawings
FIG. 1 is a schematic perspective view of a fastening and anti-loosening device and a method for fastening and anti-loosening by bolt connection according to the present invention;
FIG. 2 is a partial structural view of a screw in the method for fastening and preventing loosening of a bolt connection according to the present invention;
FIG. 3 is a partial schematic view of a locking structure in the method for locking the fastening and locking device and the bolt connection according to the present invention;
FIG. 4 is a partial structural schematic view of an annular spring in the method for fastening and preventing looseness of a bolt connection and a fastening and preventing looseness device according to the design of the invention;
fig. 5 is a disassembled schematic view of fig. 3 in a method for designing a fastening anti-loosening device and fastening anti-loosening by bolt connection according to the present invention.
Illustration of the drawings: 1. a screw; 2. a connecting piece A; 3. a connecting piece B; 4. a nut; 5. a locking structure; 51. a first annular gasket; 52. an annular spring; 53. a second annular gasket; 54. and (4) anti-skid bulges.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
The method comprises the following steps:
s1, inserting the screw 1 into the connecting piece A2 and the connecting piece B3 to make the connecting piece A2 cling to the head of the screw 1;
s2, then, the first annular gasket 51 is sleeved on the surface of the screw 1 and is contacted with the connecting piece B3;
s3, sleeving the annular spring 52 on the surface of the screw 1, and sleeving the second annular washer 53 on the surface of the screw 1 after the annular spring 52 is sleeved, so that the annular spring 52 is located between the first annular washer 51 and the second annular washer 53;
s4, sleeving the nut 4 on the surface of the screw 1, and screwing the nut 4 by a tool to enable the nut 4 to be close to the anti-loose structure 5;
s5, pressing the nut 4 against the anti-loose structure 5, wherein the first annular washer 51 and the second annular washer 53 will simultaneously press the annular spring 52, and the annular spring 52 will tilt along the circumference to generate the rebounding force to achieve the anti-loose function.
The specific arrangement and function of the anti-loosening structure 5 will be described in detail below.
As shown in fig. 1 and 4, the anti-loose structure 5 comprises a first annular washer 51, the inner wall of the first annular washer 51 is movably connected with the screw 1, a second annular washer 53 and an annular spring 52 are sleeved on the surface of the screw 1, the annular spring 52 is positioned between the first annular washer 51 and the second annular washer 53, the first annular washer 51 and the second annular washer 53 are buckled with each other, anti-slip protrusions 54 are fixedly connected on the surfaces of the first annular washer 51 and the second annular washer 53, when the connecting piece a2 and the connecting piece B3 are required to be connected together, the connecting piece a2 and the connecting piece B3 are firstly sleeved on the surface of the screw 1 and are tightly attached to the head of the screw 1, then the anti-loose device is sleeved on the surface of the screw 1, the nut 4 is screwed on the surface of the screw 1 by a tool, when the nut 4 presses the anti-loose structure 5, the novel anti-loose device is compressed by the screwing force of, the ring spring 52 installed in the anti-loosening structure 5 can tilt along the circumference under the action of a compression force, each coil of the ring spring 52 can generate a continuous elastic force, the ring spring 52 has the superposition of the elastic force resultant generated by N coils, namely the rebound force of the N coils, and can be amplified by a plurality of times compared with the elastic force generated by the traditional elastic washer, after the first ring washer 51 and the second ring washer 53 are screwed to the tilting limit of the ring spring 52, the distance between the first ring washer 51 and the second ring washer 53 is greater than zero, and the coil of the ring spring 52 is designed with an inclination angle alpha in the ring circumferential direction, namely the fastening rotation direction.
The main name innovation point of the whole first device achieves the effect that by arranging the anti-loose device, when the connecting piece A2 and the connecting piece B3 are required to be connected together, the connecting piece A2 and the connecting piece B3 are firstly sleeved on the surface of the screw 1 and are tightly attached to the head of the screw 1, then the anti-loose device is sleeved on the surface of the screw 1, at the moment, the nut 4 is screwed on the surface of the screw 1 through a tool, when the nut 4 extrudes the anti-loose structure 5, the novel anti-loose device is compressed through the screwing force of the nut 4, the annular spring 52 arranged in the anti-loose structure 5 can incline along the circumference under the action of the compression force, each spiral coil of the annular spring 52 can generate a continuous elastic force, the elastic resultant force generated by N spiral coils of the annular spring 52 is the superposition of the rebound force of the N spiral coils, and the elastic force can be multiplied by a plurality of times compared with the elastic force, then the elasticity makes the nut 4 and the screw thread connection pair of the screw 1 keep a kind of packing force and frictional force continuously, thus produce the moment of resistance, realize the effect to prevent the nut 4 from becoming flexible, wherein the non-slip bulge 54 has made the annular spring 52 can topple over fast when the first annular gasket 51 and the second annular gasket 53 relatively rotate, the whole structure has solved the existing locking method and is not abundant enough, and each has good and bad shortcomings, especially there is the limited problem of resilience that elastic gasket, belleville spring washer produced to the friction locking pressurized, the problem that its effect of fastening locking still has obvious limitation.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (6)
1. The utility model provides a method that fastening locking device design and bolted connection fastening were locking, includes screw (1) and anti loosening structure (5), its characterized in that: the surface cover of screw (1) has connecting piece A (2) and connecting piece B (3), the surface thread cover of screw (1) has nut (4), the surface of screw (1) is equipped with anti loosening structure (5), anti loosening structure (5) include first annular packing ring (51), the inner wall and screw (1) swing joint of first annular packing ring (51), the surface cover of screw (1) has second annular packing ring (53) and ring spring (52).
2. A fastening anti-loosening device design as claimed in claim 1, wherein: the annular spring (52) is positioned between the first annular gasket (51) and the second annular gasket (53).
3. A fastening anti-loosening device design as claimed in claim 1, wherein: the first annular gasket (51) and the second annular gasket (53) are buckled with each other, and anti-skid protrusions (54) are fixedly connected to the surfaces of the first annular gasket (51) and the second annular gasket (53).
4. A fastening anti-loosening device design as claimed in claim 1, wherein: and the distance between the first annular gasket (51) and the second annular gasket (53) is greater than zero after the first annular gasket (51) and the second annular gasket (53) are screwed to the falling limit of the annular spring (52).
5. A fastening anti-loosening device design as claimed in claim 1, wherein: the coils of the annular spring (52) are designed with an inclination angle alpha in the annular circumferential direction, i.e. in the direction of rotation in which the tightening is effected.
6. The method for preventing the fastening and the locking of the fastening device and the bolt connection according to the claim 1, is characterized in that: the method comprises the following steps:
s1, inserting the screw (1) into the connecting piece A (2) and the connecting piece B (3) to make the connecting piece A (2) tightly attached to the head of the screw (1);
s2, then sleeving the first annular gasket (51) on the surface of the screw (1) and enabling the first annular gasket to be in contact with the connecting piece B (3);
s3, sleeving the annular spring (52) on the surface of the screw (1), and sleeving the second annular gasket (53) on the surface of the screw (1) after the annular spring (52) is sleeved, so that the annular spring (52) is located between the first annular gasket (51) and the second annular gasket (53);
s4, sleeving the nut (4) on the surface of the screw (1), and screwing the nut (4) through a tool to enable the nut (4) to be close to the anti-loosening structure (5);
s5, the nut (4) is pressed against the anti-loose structure (5), the first annular washer (51) and the second annular washer (53) press the annular spring (52) simultaneously, and the annular spring (52) tilts along the circumference to generate a rebound force to realize anti-loose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110387921.8A CN113007198A (en) | 2021-04-12 | 2021-04-12 | Method for designing fastening and anti-loosening device and connecting fastening and anti-loosening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110387921.8A CN113007198A (en) | 2021-04-12 | 2021-04-12 | Method for designing fastening and anti-loosening device and connecting fastening and anti-loosening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113007198A true CN113007198A (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110387921.8A Pending CN113007198A (en) | 2021-04-12 | 2021-04-12 | Method for designing fastening and anti-loosening device and connecting fastening and anti-loosening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113007198A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879001A (en) * | 2021-11-19 | 2022-01-04 | 增和包装股份有限公司 | Printing ink barrel for printing of high-efficient accuse temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007315580A (en) * | 2006-05-29 | 2007-12-06 | Yoshiyuki Nakaza | Washer for preventing bolt from loosening |
| CN102852938A (en) * | 2012-09-15 | 2013-01-02 | 侯如升 | Elastic gasket with rotating preventing function |
| CN104132047A (en) * | 2014-08-20 | 2014-11-05 | 无锡市第二标准件制造有限公司 | Bolt with anti-disengagement device |
| CN104214194A (en) * | 2014-08-29 | 2014-12-17 | 秦在荣 | Cushion ring with spring |
| CN204852431U (en) * | 2015-07-22 | 2015-12-09 | 雷蒙德(北京)科技股份有限公司 | Sealed loading structure of fixed ball valve seating |
| CN107327466A (en) * | 2017-09-10 | 2017-11-07 | 刘淑敏 | A kind of check bolt group |
| JP3217336U (en) * | 2017-08-31 | 2018-08-02 | コア ボルト カンパニー リミテッド | Double nut with locking member |
-
2021
- 2021-04-12 CN CN202110387921.8A patent/CN113007198A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007315580A (en) * | 2006-05-29 | 2007-12-06 | Yoshiyuki Nakaza | Washer for preventing bolt from loosening |
| CN102852938A (en) * | 2012-09-15 | 2013-01-02 | 侯如升 | Elastic gasket with rotating preventing function |
| CN104132047A (en) * | 2014-08-20 | 2014-11-05 | 无锡市第二标准件制造有限公司 | Bolt with anti-disengagement device |
| CN104214194A (en) * | 2014-08-29 | 2014-12-17 | 秦在荣 | Cushion ring with spring |
| CN204852431U (en) * | 2015-07-22 | 2015-12-09 | 雷蒙德(北京)科技股份有限公司 | Sealed loading structure of fixed ball valve seating |
| JP3217336U (en) * | 2017-08-31 | 2018-08-02 | コア ボルト カンパニー リミテッド | Double nut with locking member |
| CN107327466A (en) * | 2017-09-10 | 2017-11-07 | 刘淑敏 | A kind of check bolt group |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879001A (en) * | 2021-11-19 | 2022-01-04 | 增和包装股份有限公司 | Printing ink barrel for printing of high-efficient accuse temperature |
| CN113879001B (en) * | 2021-11-19 | 2022-10-11 | 增和包装股份有限公司 | Printing ink barrel for printing of high-efficient accuse temperature |
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Application publication date: 20210622 |