CN207514056U - A kind of self-adjustable fastening structure - Google Patents
A kind of self-adjustable fastening structure Download PDFInfo
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- CN207514056U CN207514056U CN201721357140.XU CN201721357140U CN207514056U CN 207514056 U CN207514056 U CN 207514056U CN 201721357140 U CN201721357140 U CN 201721357140U CN 207514056 U CN207514056 U CN 207514056U
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Abstract
The utility model is related to a kind of self-adjustable fastening structures, including the first connector, the second connector and the fastener for connecting the first connector and the second connector, fastener include bolt and with the matched nut of bolt, first connector is equipped with through-hole, second connector is equipped with blind hole, second connector side is equipped with the nut mounting hole for installing nut in the lower part of blind hole, bolt passes through the through-hole of the first connector and the blind hole of the second connector, bolt lower end is connect with nut, and the first connector and the second connector are fastened.Compared with prior art, the utility model is overcome due to manufacture factor, the defects of threaded connection is made to generate additional stress, the nut made of the cylinder substitutes the screw thread in blind hole, in threaded pre-tightening, cylinder body nut meeting automatic capturing offsets the error that manufacture generates, avoid the additional stress generated when pre-tightening screw thread, it is ensured that the reliability of threaded connection.
Description
Technical field
The utility model is related to a kind of connection structures, and in particular to a kind of self-adjustable fastening structure.
Background technology
In mechanical equipment, bolt is widely used for two connectors of connection, wherein in a thicker connector blind hole
Tapping, and connect with other parts.The main problem of the structure is：In fastening bolt, the pretightning force that pre-add is certain is needed, makes spiral shell
Bolt generates flexible deformation, is fastened connector by this deformation.Due to manufacture factor, thread center is made to screw face very with bolt
It is hard to keep vertical.Therefore, when tightening bolt, bolt can be made to generate additional bending stress, the serious intensity for reducing bolt, by
Shock and vibration, varying load operating mode under, easily cause the fracture of bolt.
Utility model content
The purpose of this utility model is exactly to solve the above-mentioned problems and provides and a kind of self-adjustable be fastenedly connected knot
Structure.
The purpose of this utility model is achieved through the following technical solutions：
A kind of self-adjustable fastening structure is connected including the first connector, the second connector and by first
Part and the fastener of the second connector connection, the fastener include bolt and with the matched nut of bolt, described the
A connection piece is equipped with through-hole, and second connector is equipped with blind hole, and the second connector side is equipped in the lower part of blind hole
For installing the nut mounting hole of nut, the bolt passes through the through-hole of the first connector and the blind hole of the second connector, spiral shell
Bolt lower end is connect with nut, and the first connector and the second connector are fastened.
As preferred technical solution, the distance of the second connector of nut mounting hole upper end distance upper surface is 2-
3cm specifically depending on connecting material, meets intensity requirement.
As preferred technical solution, the nut is nut made of cylinder, and nut is carried out with nut mounting hole
Clearance fit, convenient for automatic adjustment of the nut in nut mounting hole.More preferably technical solution, the screw thread of the nut are long
Spend for 2-3cm, which can ensure being reliably connected for two components, size it is too long then It is not necessary to, not only can waste of materials, increase
Cost, in assembling nor easily, if size is too short, and can not meet its intensity requirement, nut and nut mounting hole it
Between gap for 0.5-2mm, assembling and adaptive adjustment convenient for nut.
As preferred technical solution, the thread center of the nut and the axle center of blind hole align, and ensure hanging down for bolt
Straight installation.
As preferred technical solution, the thickness of second connector is more than the first connector, and the first connector is relatively thin.
The defects of the utility model is in order to overcome due to manufacture factor, threaded connection be made to generate additional stress, provides one kind
Self-adjustable fastening structure, the nut made of the cylinder substitutes the screw thread in blind hole, in threaded pre-tightening
When, cylinder body nut meeting automatic capturing offsets the error that manufacture generates, avoids the additional stress generated when pre-tightening screw thread, really
Protect the reliability being threadedly coupled.The utility model is simple in structure, can realize the important reliability for being fastenedly connected screw thread, avoid bolt
It is influenced by additional stress, is being hit, is vibrating, under the operating mode of varying load, cause the equipment breakdown answered bolt fracture and occurred,
With smaller cost solve the problems, such as bolt due to additional bending stress and caused by bolt fracture.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the schematic diagram of existing connection structure；
In figure：1- bolts；The first connectors of 2-；The second connectors of 3-；4- nuts.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
Fig. 2 is the schematic diagram of existing bolt fastening structure, and bolt 1 connects the first connector 2 and the second connector 3,
Tapping in thicker 3 blind hole of the second connector, connect with the first connector 2, but the structure main problem is, in fastening bolt 1
When, need the pretightning force that pre-add is certain, make bolt 1 generate flexible deformation, fastened connector by this deformation, due to manufacture because
Element, it is difficult that holding is vertical that thread center is made, which to screw face with bolt, when tightening bolt, bolt 1 can be made to generate additional bending stress,
The serious intensity for reducing bolt 1, is being hit, is vibrating, under the operating mode of varying load, easily causing the fracture of bolt 1.
In order to solve this problem, the utility model provides a kind of self-adjustable fastening structure, as shown in Figure 1,
The structure includes bolt 1, the first connector 2, the second connector 3, nut 4, and the first connector 2 is equipped with through-hole, the second connector 3
Equipped with blind hole, 3 side of the second connector is equipped in the lower part of blind hole for the nut mounting hole of installing nut 4, and bolt 1 passes through the
The blind hole of the through-hole of a connection piece 2 and the second connector 3,1 lower end of bolt are connect with nut 4, by the first connector and second
Connector fastens.
Wherein, the distance of 3 upper surface of the second connector of nut mounting hole upper end distance meets intensity requirement, spiral shell in 2-3cm
Mother 4 is nut made of cylinder, and nut and nut mounting hole carry out clearance fit, convenient for nut in nut mounting hole from
It is dynamic to adjust.Nut thread length is in 2-3cm, which can ensure being reliably connected for two components, between nut and nut mounting hole
Gap in 0.5-2mm, align convenient for the assembling and adaptive adjustment, the thread center of nut and the axle center of blind hole of nut,
Ensure the right angle setting of bolt.
When assembling the application pretightning force of bolt 1, since cylinder body nut and the second thicker connector 3 are clearance fits,
When thread center and bolt 1, which screw face, the error of perpendicularity, cylinder body nut can rotate in the second connector 3, it is ensured that spiral shell
Bolt center screws with it and is pre-tightened under plumbness at face, thoroughly eliminates the additional bending stress brought by mismachining tolerance, protects
Demonstrate,prove the reliability of connection.The utility model optimizes bolted structure, and bolt is solved due to additional curved with smaller cost
Transverse stress and caused by bolt fracture the problem of.
Claims (6)
1. a kind of self-adjustable fastening structure, which is characterized in that including the first connector, the second connector and incite somebody to action
First connector and the second connector connection fastener, the fastener include bolt and with the matched nut of bolt,
First connector is equipped with through-hole, and second connector is equipped with blind hole, and the second connector side is in blind hole
Lower part is equipped with for the nut mounting hole of installing nut, and the bolt passes through the through-hole and the second connector of the first connector
Blind hole, bolt lower end are connect with nut, and the first connector and the second connector are fastened.
A kind of 2. self-adjustable fastening structure according to claim 1, which is characterized in that the nut installation
The distance of hole upper end the second connector of distance upper surface is 2-3cm.
3. a kind of self-adjustable fastening structure according to claim 1, which is characterized in that the nut is
Nut made of cylinder, nut carry out clearance fit with nut mounting hole.
A kind of 4. self-adjustable fastening structure according to claim 3, which is characterized in that the spiral shell of the nut
Line length is 2-3cm, and the gap between nut and nut mounting hole is 0.5-2mm.
A kind of 5. self-adjustable fastening structure according to claim 3, which is characterized in that the spiral shell of the nut
Line center and the axle center of blind hole align.
A kind of 6. self-adjustable fastening structure according to claim 1, which is characterized in that second connection
The thickness of part is more than the first connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357140.XU CN207514056U (en) | 2017-10-20 | 2017-10-20 | A kind of self-adjustable fastening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357140.XU CN207514056U (en) | 2017-10-20 | 2017-10-20 | A kind of self-adjustable fastening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207514056U true CN207514056U (en) | 2018-06-19 |
Family
ID=62534925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721357140.XU Active CN207514056U (en) | 2017-10-20 | 2017-10-20 | A kind of self-adjustable fastening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207514056U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578430A (en) * | 2018-12-17 | 2019-04-05 | 苏州曼德克光电有限公司 | A kind of compartment connects hinge and preparation method thereof |
| CN109606608A (en) * | 2018-12-03 | 2019-04-12 | 江西洪都航空工业集团有限责任公司 | One kind being used for fuselage wing mate structure |
| CN110566550A (en) * | 2019-09-12 | 2019-12-13 | 攀钢集团攀枝花钢钒有限公司 | Screw connection structure |
-
2017
- 2017-10-20 CN CN201721357140.XU patent/CN207514056U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109606608A (en) * | 2018-12-03 | 2019-04-12 | 江西洪都航空工业集团有限责任公司 | One kind being used for fuselage wing mate structure |
| CN109606608B (en) * | 2018-12-03 | 2022-05-31 | 江西洪都航空工业集团有限责任公司 | Be used for fuselage wing butt joint structure |
| CN109578430A (en) * | 2018-12-17 | 2019-04-05 | 苏州曼德克光电有限公司 | A kind of compartment connects hinge and preparation method thereof |
| CN109578430B (en) * | 2018-12-17 | 2024-05-07 | 苏州曼德克光电有限公司 | Waterproof box connection hinge and manufacturing method thereof |
| CN110566550A (en) * | 2019-09-12 | 2019-12-13 | 攀钢集团攀枝花钢钒有限公司 | Screw connection structure |
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