CN202579570U - Hexagonal slotting nut and threaded connection structure provided with same - Google Patents
Hexagonal slotting nut and threaded connection structure provided with same Download PDFInfo
- Publication number
- CN202579570U CN202579570U CN 201220208728 CN201220208728U CN202579570U CN 202579570 U CN202579570 U CN 202579570U CN 201220208728 CN201220208728 CN 201220208728 CN 201220208728 U CN201220208728 U CN 201220208728U CN 202579570 U CN202579570 U CN 202579570U
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- China
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- nut
- roof pressure
- nut body
- pressure end
- hexagon slotted
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Abstract
The utility model discloses a hexagonal slotting nut and a threaded connection structure provided with the hexagonal slotting nut. The threaded connection structure comprises a bolt inserted into a connecting piece, the hexagonal slotting nut and a cotter pin; the hexagonal slotting nut is screwed on the bolt and is in press fit with the connecting piece; the hexagonal slotting nut comprises a nut body; a press end and a free end are arranged at the two ends of the nut body respectively; a holding section is arranged on the peripheral surface of the nut body; six holding side surfaces are arranged on the holding section; a U-shaped open slot extending from the free end to the press end is formed at the middle of each holding side surface; the extending length of each U-shaped open slot is smaller than that of the holding section; the cotter pin penetrates into a pin hole correspondingly formed on the bolt and the U-shaped open slots of the nut; the U-shaped open slots divide the corresponding part of the holding section into six locking sections; and the tail ends of the six locking sections form a closing-up structure which is centralized to the central axis of a threaded through hole. The locking sections trend to contraction, so that the pre-tightening force of the locking sections and the bolt is enhanced.
Description
Technical field
The utility model belongs to technical field of fastening, relates to a kind of thread joined structure, is specifically related to a kind of hexagon slotted nut.
Background technique
At aerospace field; The normal hexagon slotted nut that adopts is applied on the thread joined structure as tightening nut; Yin Qichang uses under vibration environment; Institute thinks that assurance connects Security, needs carry out locking processing to guarantee that scyewed joint can not lose efficacy to the scyewed joint between the bolt of hexagon slotted nut and corresponding matching.
Existing hexagon slotted nut comprises that the middle part is provided with the nut body of tapped through hole; Nut body has the roof pressure section and free section that is used for cooperating with the coupling roof pressure; On the outer circumferential face of nut body, have along the tapped through hole central axis from said free end to the identical clamping side of six structures that the roof pressure end extends; The middle part of each clamping side all offers the U type opening slot that extends to the roof pressure end from free end, the length that the length that U type opening slot extends is extended less than gripping section, and the free end of nut body is separated into six locking lobes by U type opening slot; During use; The nut spinning on bolt, is penetrated cotter pin on the bolt in the corresponding pin-and-hole of offering in the U type opening slot with nut, and break the cotter pin afterbody into two with one's hands with nut clamping side and be adjacent to and get final product.But above-mentioned hexagon slotted nut is being applied under the vibration environment, and its anti-loosening property can not satisfy the connection requirement, and bolt connection structure occurs loosening easily.Therefore, need a kind of hexagon slotted nut of exploitation to meet the need of market with locking self-locking property.
The model utility content
The purpose of the utility model is to provide a kind of hexagon slotted nut with self-locking property, lacks self-locking property and causes thread joined structure loosening technical problem to occur to solve hexagon slotted nut of the prior art; Simultaneously, the utility model also provides a kind of thread joined structure with above-mentioned hexagon slotted nut.
For realizing above-mentioned purpose; The hexagon slotted nut that the utility model provided adopts following technological scheme: a kind of hexagon slotted nut; Comprise that the middle part is provided with the nut body of tapped through hole; The two ends of nut body are respectively roof pressure end and free end, have the gripping section that extends to the roof pressure end along the tapped through hole central axis from said free end on the outer circumferential face of nut body, have six clamping sides on this gripping section; The middle part of each clamping side all offers the U type opening slot that extends to the roof pressure end from free end; The length that the length that U type opening slot extends is extended less than gripping section, said U type opening slot is separated into six locking lobes with the corresponding position of gripping section, and the end of described six locking lobes is the closing in structure of concentrating to the tapped through hole central axis.
The roof pressure end of described nut body is the cylinder segment structure, and the radial dimension of the roof pressure end of cylinder segment structure is greater than the maximum radial dimension of said free section, and smooth transition connects between the roof pressure end of said free section and cylinder segment structure.
The top layer of described nut body has silver plating layer.
The top layer of described nut body is coated with the curing molybdenum layer.
The thread joined structure with hexagon slotted nut that the utility model provided adopts following technological scheme: a kind of thread joined structure with hexagon slotted nut; Comprise the bolt, hexagon slotted nut and the cotter pin that are inserted on the coupling; Wherein, The hexagon slotted nut spinning cooperates on bolt and with the coupling roof pressure, and said hexagon slotted nut comprises nut body, and the nut body middle part is provided with tapped through hole; The two ends of nut body are respectively roof pressure end and free end; Have the gripping section that extends to the roof pressure end along the tapped through hole central axis from said free end on the outer circumferential face of nut body, have six clamping sides on this gripping section, the middle part of each clamping side all offers the U type opening slot that extends to the roof pressure end from free end; The length that the length that U type opening slot extends is extended less than gripping section; Described cotter pin penetrates in the pin-and-hole that correspondence is offered on the bolt and in the U type opening slot of nut, said U type opening slot is separated into six locking lobes with the corresponding position of gripping section, and described six locking lobe ends are the closing in structure of concentrating to the tapped through hole central axis.
The roof pressure end of described nut body is the cylinder segment structure, and the radial dimension of the roof pressure end of cylinder segment structure is greater than the maximum radial dimension of said free section, and smooth transition connects between the roof pressure end of said free section and cylinder segment structure.
The top layer of described nut body has silver plating layer.
The top layer of described nut body is coated with the curing molybdenum layer.
The beneficial effect of the utility model is: the free section of the hexagon slotted nut that is provided in the utility model is separated into six locking lobes by U type opening slot; These six locking lobe ends are the closing in structure of concentrating to the central axis of tapped through hole; Like this, with the hexagon slotted nut spinning after on the bolt, bolt can strut being the locking lobe of collecting mouth structure in advance; The locking lobe has a kind of trend of contraction; Thereby strengthened the pretightening force of locking lobe and bolt, made nut have self-locking property, the bolt connection structure that avoids the use of this hexagon slotted nut occurs loosening.The utility model is simple in structure, and is easy to process, the suitable production in enormous quantities in enormous quantities, adaptable across the important connected element and the high tenacity connection part of Aerospace Products, particularly is applicable under the rigorous environment such as vibration environment.
The free end of the hexagon slotted nut in the bolt connection structure that the utility model provided has by separated six the locking lobes of U type opening slot; These six locking lobe ends are the closing in structure of concentrating to the central axis of tapped through hole; Like this, with the hexagon slotted nut spinning after on the bolt, bolt can strut being the locking lobe of collecting mouth structure in advance; The locking lobe has a kind of trend of contraction; Thereby strengthened the pretightening force of locking lobe and bolt, made the nut to have self-locking property, so again with the anti-loosing effect of cottering; Make bolt connection structure that the utility model provided be not easy to occur loosening, can satisfy the fastening requirement under the severe rugged environment such as vibration environment.
Description of drawings
Fig. 1 is a kind of embodiment's of thread joined structure of providing of the utility model a structural representation;
Fig. 2 is a kind of embodiment's of hexagon slotted nut among Fig. 1 a structural representation;
Fig. 3 is the left side view of Fig. 2.
Embodiment
Like Fig. 2, shown in Figure 3; A kind of embodiment of hexagon slotted nut; Hexagon slotted nut 2 among this embodiment comprises that the middle part is provided with the nut body 21 of tapped through hole 27; The two ends of nut body 21 are respectively roof pressure end 25 and free end 23, have the free section of extending to the roof pressure end along the tapped through hole central axis from said free end on the outer circumferential face of nut body 21, have six clamping sides 22 on this free section; The middle part of each clamping side 22 all offers the U type opening slot 24 that extends to the roof pressure end from free end; The length that the length that U type opening slot 24 extends is extended less than gripping section, described U type opening slot is separated into six locking lobes 26 with the free section corresponding position of nut body, and the end of described six locking lobes 26 is the closing in structure of concentrating to the tapped through hole central axis.
Preferably, the roof pressure end of the nut body in the present embodiment is the cylinder segment structure, and the radial dimension of the roof pressure end of cylinder segment structure is greater than the maximum radial dimension of said free section, and smooth transition connects between the roof pressure end of said free section and cylinder segment structure.
For improving the intensity of nut, in the present embodiment, has silver plating layer on the outer circumferential face of nut body.In other embodiments, also can apply the curing molybdenum layer on the top layer of nut body.
Like Fig. 1, Fig. 2, shown in Figure 3; A kind of embodiment with thread joined structure of hexagon slotted nut, the thread joined structure among this embodiment comprises a kind of thread joined structure with hexagon slotted nut, comprises the bolt 3, hexagon slotted nut 2 and the cotter pin 4 that are inserted on the coupling 1; Wherein, Hexagon slotted nut 2 spinnings cooperate on bolt 3 and with coupling 1 roof pressure, and the hexagon slotted nut employing Fig. 2 in the present embodiment, structure shown in Figure 3 repeat no more at this; During assembling, the roof pressure end face on the roof pressure end of nut body cooperates with coupling 1 corresponding roof pressure.Described cotter pin 4 penetrates on the bolt in the corresponding pin-and-hole of offering in the U type opening slot with nut, and the clamping side that the cotter pin afterbody is broken into two with one's hands with nut is adjacent to.
Claims (8)
1. hexagon slotted nut; Comprise that the middle part is provided with the nut body of tapped through hole; The two ends of nut body are respectively roof pressure end and free end; Has the gripping section that extends to the roof pressure end along the tapped through hole central axis from said free end on the outer circumferential face of nut body; Have six clamping sides on this gripping section, the middle part of each clamping side all offers the U type opening slot that extends to the roof pressure end from free end, the length that the length that U type opening slot extends is extended less than gripping section; Said U type opening slot is separated into six locking lobes with the corresponding position of gripping section, and it is characterized in that: the end of described six locking lobes is the closing in structure of concentrating to the tapped through hole central axis.
2. hexagon slotted nut according to claim 1; It is characterized in that: the roof pressure end of described nut body is the cylinder segment structure; The radial dimension of the roof pressure end of cylinder segment structure is greater than the maximum radial dimension of said free section, and smooth transition connects between the roof pressure end of said free section and cylinder segment structure.
3. hexagon slotted nut according to claim 1 and 2 is characterized in that: the top layer of described nut body has silver plating layer.
4. hexagon slotted nut according to claim 1 and 2 is characterized in that: the top layer of described nut body is coated with the curing molybdenum layer.
5. thread joined structure with hexagon slotted nut; Comprise the bolt, hexagon slotted nut and the cotter pin that are inserted on the coupling, wherein, the hexagon slotted nut spinning cooperates on bolt and with the coupling roof pressure; Said hexagon slotted nut comprises nut body; The nut body middle part is provided with tapped through hole, and the two ends of nut body are respectively roof pressure end and free end, has the gripping section that extends to the roof pressure end along the tapped through hole central axis from said free end on the outer circumferential face of nut body; Have six clamping sides on this gripping section; The middle part of each clamping side all offers the U type opening slot that extends to the roof pressure end from free end, the length that the length that U type opening slot extends is extended less than gripping section, and described cotter pin penetrates on the bolt in the corresponding pin-and-hole of offering in the U type opening slot with nut; Said U type opening slot is separated into six locking lobes with the corresponding position of gripping section, it is characterized in that: described six locking lobe ends are the closing in structure of concentrating to the tapped through hole central axis.
6. the thread joined structure with hexagon slotted nut according to claim 5; It is characterized in that: the roof pressure end of described nut body is the cylinder segment structure; The radial dimension of the roof pressure end of cylinder segment structure is greater than the maximum radial dimension of said free section, and smooth transition connects between the roof pressure end of said free section and cylinder segment structure.
7. according to claim 5 or 6 described thread joined structures with hexagon slotted nut, it is characterized in that: the top layer of described nut body has silver plating layer.
8. according to claim 5 or 6 described thread joined structures with hexagon slotted nut, it is characterized in that: the top layer of described nut body is coated with the curing molybdenum layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208728 CN202579570U (en) | 2012-05-10 | 2012-05-10 | Hexagonal slotting nut and threaded connection structure provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208728 CN202579570U (en) | 2012-05-10 | 2012-05-10 | Hexagonal slotting nut and threaded connection structure provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579570U true CN202579570U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220208728 Expired - Lifetime CN202579570U (en) | 2012-05-10 | 2012-05-10 | Hexagonal slotting nut and threaded connection structure provided with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579570U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454908A (en) * | 2014-11-04 | 2015-03-25 | 贵州航天精工制造有限公司 | Axial compression thread self-locking nut and closing-in method thereof |
| CN105201992A (en) * | 2015-10-16 | 2015-12-30 | 贵州航天精工制造有限公司 | Sealed self-locking nut and manufacturing method thereof |
| CN107269660A (en) * | 2017-08-04 | 2017-10-20 | 海盐联众紧固件有限公司 | A kind of vapour nut for automobile |
| CN107521706A (en) * | 2017-07-28 | 2017-12-29 | 中国航空工业集团公司西安飞机设计研究所 | Engine aids in erection joint |
| CN108119520A (en) * | 2017-12-06 | 2018-06-05 | 航天精工股份有限公司 | A kind of self-locking nut |
| CN109899368A (en) * | 2019-04-17 | 2019-06-18 | 海盐宏茂五金制品有限公司 | A kind of hezagon castle nut with self-locking function |
| CN110055962A (en) * | 2019-04-22 | 2019-07-26 | 江苏景源万河环境科技有限公司 | A kind of open stop nut |
-
2012
- 2012-05-10 CN CN 201220208728 patent/CN202579570U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454908A (en) * | 2014-11-04 | 2015-03-25 | 贵州航天精工制造有限公司 | Axial compression thread self-locking nut and closing-in method thereof |
| CN105201992A (en) * | 2015-10-16 | 2015-12-30 | 贵州航天精工制造有限公司 | Sealed self-locking nut and manufacturing method thereof |
| CN107521706A (en) * | 2017-07-28 | 2017-12-29 | 中国航空工业集团公司西安飞机设计研究所 | Engine aids in erection joint |
| CN107269660A (en) * | 2017-08-04 | 2017-10-20 | 海盐联众紧固件有限公司 | A kind of vapour nut for automobile |
| CN108119520A (en) * | 2017-12-06 | 2018-06-05 | 航天精工股份有限公司 | A kind of self-locking nut |
| CN109899368A (en) * | 2019-04-17 | 2019-06-18 | 海盐宏茂五金制品有限公司 | A kind of hezagon castle nut with self-locking function |
| CN110055962A (en) * | 2019-04-22 | 2019-07-26 | 江苏景源万河环境科技有限公司 | A kind of open stop nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |