CN205806175U - A kind of nut connecting structure - Google Patents
A kind of nut connecting structure Download PDFInfo
- Publication number
- CN205806175U CN205806175U CN201620732184.5U CN201620732184U CN205806175U CN 205806175 U CN205806175 U CN 205806175U CN 201620732184 U CN201620732184 U CN 201620732184U CN 205806175 U CN205806175 U CN 205806175U
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- CN
- China
- Prior art keywords
- packing ring
- hole
- nut
- threaded hole
- connecting structure
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Abstract
The utility model discloses a kind of nut connecting structure, including nut body, packing ring, housing screw, described nut body axial centre is provided with neutral threaded hole, described packing ring is provided with washer center hole, described neutral threaded hole overlaps with washer center axially bored line, main connecting bolt is connected with nut body by neutral threaded hole behind washer center hole, periphery in neutral threaded hole be provided with multiple axially through outer periphery threads hole, the axis in described outer periphery threads hole is uniform centered by the axis of neutral threaded hole, described housing screw coordinates with outer periphery threads hole, the end of housing screw coordinates with packing ring upper surface, described packing ring lower surface coordinates with the end face of connected piece.This utility model compact conformation, equipment installation, maintenance, dismounting are more convenient so that the connection of large-sized bolt fastening is easier, fastening force is more accurate, the topology layout of equipment is more reasonable, is particularly suited for the occasion that main equipment needs large-sized bolt and nut to connect, meets the market demand.
Description
Technical field
This utility model relates to threaded connector technical field, particularly relates to a kind of nut connecting structure.
Background technology
Various mechanical transmission of the prior art and equipment install the bolt and nut of widely used various types even
Connecing, the bolt of prior art, nut connecting structure also exist some defects, such as in the position of connecting portion narrow space, if
Standby characteristics of compact layout, when being connected by bolts and nuts, easily cause fastening, mount and dismount the most difficult, while set at machinery
In standby unloading process, it is susceptible to the locked phenomenon of connecting bolt, directly affects equipment installment quality and normal maintenance.
It addition, for more and more to pass through large-scale spiral shell on the equipment such as high-power marine electromotor, mammoth pump, forcing press
Bolt nut connects fastening, and the product specification of bolt and nut is done bigger and bigger, needs bigger tightening torque, generally requires special
Dismantling device, to assembly or disassembly and safeguard and more change jobs and all bring difficulty.For overcoming the defect of above-mentioned existence, people are changing
The design structure of kind equipment and bolt connection aspect are also gradually seeking new approaches solution problem above.
Utility model content
The purpose of this utility model is exactly for solving the problems referred to above that prior art exists, it is provided that a kind of nut connects knot
Structure；This utility model compact conformation, equipment installation, maintenance, dismounting are more convenient so that the connection of large-sized bolt fastening is easier,
Fastening force is more accurate, and the topology layout of equipment is more reasonable, and being particularly suited for main equipment needs threaded occasion, meets
The market demand.
This utility model solves the technical scheme of technical problem:
A kind of nut connecting structure, including nut body, packing ring, housing screw, described nut body axial centre is provided with
Neutral threaded hole, described packing ring is provided with washer center hole, and described neutral threaded hole overlaps with washer center axially bored line, main connection spiral shell
Bolt is connected with nut body through behind washer center hole by neutral threaded hole, the periphery in neutral threaded hole be provided with multiple axially
Through outer periphery threads hole, the axis in described outer periphery threads hole is uniform centered by the axis of neutral threaded hole, described compression spiral shell
Nail coordinates with outer periphery threads hole, and the end of housing screw coordinates with packing ring upper surface, described packing ring lower surface and connected piece
End face coordinates.
Described housing screw includes being located at the external thread part in axial centre position, major part tightens portion, optical axis compressed part, wherein
External thread part one end is connected with the major part portion of tightening, the other end is connected with optical axis compressed part, the outside diameter of described optical axis compressed part
Less than the path of external thread part, described optical axis compressed part passes outer periphery threads hole, the end of optical axis compressed part and packing ring upper surface
Coordinate.
Described external thread part is connected by the transition circle conical surface with optical axis compressed part, and the outside diameter of described packing ring is with nut originally
The outside diameter of body is equal.
The major part portion of tightening of described housing screw uses regular polygon structure.
The both ends of the surface of the neutral threaded hole of described nut body are provided with the little conical chamfering of outer imperial palace or R fillet.
The both ends of the surface in described outer periphery threads hole are provided with the conical chamfering that outer imperial palace is little.
It is provided with chamfering at the both ends of the surface cylindrical of described nut body.
The end of described optical axis compressed part is provided with the smooth chamfering of deburring.
Optical axis compressed part end is shiny surface.
Described nut body, packing ring, the surface of housing screw are provided with the manganese phosphate coating layer improving surface friction property.
The beneficial effects of the utility model:
This utility model compact conformation, equipment installation, maintenance, dismounting are more convenient so that the connection of large-sized bolt fastens more
Simplicity, fastening force is more accurate, and the topology layout of equipment is more reasonable, and being particularly suited for main equipment needs large-sized bolt spiral shell
Female occasion connected, meets the market demand.Due to applied when being connected between neutral threaded hole and the bolt of nut body
Moment of torsion is smaller, and described neutral threaded hole can use less size, and what other outer periphery threads hole was arranged can more lean on
The axial location of nearly neutral threaded hole, and the housing screw that size is less can be used, directly made by female thread screwing force
On hard washer end face rather than directly act on the end face of connector, by main connecting bolt fastening force by multiple
Housing screw decomposes.Thus in the case of the housing screw that use size is smaller, by the coordinative role of multiple housing screws,
Ensure reliably to be connected firmly by connected piece, make again overall structure compacter.
2. utility model is sequentially tightened by tightening by diagonal angle of multiple housing screws successively and is stepped up screwing force
Square, use multistage pretension, it is achieved high accuracy connects fastening, it is to avoid the excessive bolt failure, tight of causing of fastening force in prior art
Gu power there will be loosening problem close to or smaller than bolt when bearing load.
The tension variation of nut the most of the present utility model is little, and packing ring keeps uniform pressure with body junction, prevents partially
Turning, they are combined uniformly with connection holes, prevent bolt strained uneven, improve the reliability of connector.
4. this utility model uses hand-operated tools just can fasten the stud/bolt being relatively large in diameter easily, installs, dismantles
Time, in less space, having only to a manual torque spanner, a people only needs a few minutes just can complete to install or remove work
Measure, the set-up time of more than 60% can be saved than plain bolt, operate fool proof, it is not necessary to use hydraulic spanner, hydraulic pressure
The specific purpose tool such as stretcher, heating rod, can produce the fastener shaft power meeting connection request, and can repeated multiple times use, economical
Property is good, has easy and simple to handle, time saving and energy saving, the advantage of economic security.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is housing screw structural representation.
Detailed description of the invention
In order to be more fully understood that this utility model, explain in detail embodiment of the present utility model below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of nut connecting structure, including nut body 1, packing ring 2, housing screw 3, described spiral shell
Maternal body 1 axial centre is provided with neutral threaded hole 11, and described packing ring 2 is provided with washer center hole 21, described neutral threaded hole 11 with
Washer center axially bored line overlaps, diameter matches, and main connecting bolt passes through neutral threaded hole 11 and spiral shell behind washer center hole
Maternal body 11 connects, the periphery in neutral threaded hole 11 be provided with multiple axially through outer periphery threads hole 15, described outer periphery threads
The axis in hole 15 is uniform centered by the axis of neutral threaded hole 11, and described housing screw 3 includes being located at axial centre position
External thread part 32, external thread part 32 one end tightens with major part that portion 31 is connected, the other end is connected with optical axis compressed part 33, described optical axis
The diameter of compressed part 33 is less than the path in outer periphery threads hole 15, namely less than the path of external thread part 32, described external thread part
32 are connected by the transition circle conical surface 34 with optical axis compressed part 33, and described housing screw 3 coordinates with outer periphery threads hole 15, described optical axis
Compressed part 33 is through outer periphery threads hole 15, and the end of optical axis compressed part coordinates with packing ring 2 upper surface, described packing ring 2 lower surface and
The end face of connected piece coordinates.Due to the torque ratio that applied when being connected between neutral threaded hole and the bolt of nut body relatively
Little, described neutral threaded hole can use less size, and what other outer periphery threads hole was arranged can be closer to middle screw
The axial location of pit, and the housing screw that size is less can be used, thus using the smaller housing screw of size
In the case of, by the coordinative role of multiple housing screws, it is ensured that be reliably connected firmly by connected piece, make again overall structure
Compacter.
The outside diameter of described packing ring is equal with the outside diameter of nut body, naturally it is also possible to is slightly larger than or is slightly smaller than
The outside diameter of nut body.
The major part portion of tightening of described housing screw 3 uses regular polygon structure.Such as positive six prism structures or four-prism
Structure.
The both ends of the surface of the neutral threaded hole of described nut body 1 are provided with the conical chamfering 12 that outer imperial palace is little.
The both ends of the surface in described outer periphery threads hole 15 are provided with 45 ° of conical chamferings 14 that outer imperial palace is little, or are designed as R circle
Angle.
It is provided with chamfering 13 at the both ends of the surface cylindrical of described nut body 1.
The end of described optical axis compressed part 33 is provided with the smooth chamfering 35 of deburring.
Optical axis compressed part 33 end is shiny surface.
Described nut body 1, packing ring 2, the surface of housing screw are provided with the manganese phosphate coating layer improving surface friction property.
Although the detailed description of the invention of utility model is described by the above-mentioned accompanying drawing that combines, but not to this utility model
The restriction of protection domain, on the basis of the technical solution of the utility model, those skilled in the art need not pay creativeness
Various amendments that work can be made or deformation are still within protection domain of the present utility model.
Claims (10)
1. a nut connecting structure, is characterized in that, including nut body, packing ring, housing screw, during described nut body is axial
The heart is provided with neutral threaded hole, and described packing ring is provided with washer center hole, and described neutral threaded hole overlaps with washer center axially bored line, main
Connecting bolt is connected with nut body by neutral threaded hole behind washer center hole, and the periphery in neutral threaded hole is provided with many
Individual axially through outer periphery threads hole, the axis in described outer periphery threads hole is uniform centered by the axis of neutral threaded hole, described
Housing screw coordinates with outer periphery threads hole, and the end of housing screw coordinates with packing ring upper surface, described packing ring lower surface with connected
The end face of fitting coordinates.
2. a kind of nut connecting structure as claimed in claim 1, is characterized in that, described housing screw includes being located at axial centre
The external thread part of position, major part tighten portion, optical axis compressed part, and its outer threaded part one end is connected with the major part portion of tightening, the other end
Being connected with optical axis compressed part, the outside diameter of described optical axis compressed part is less than the path of external thread part, and described optical axis compressed part is worn
Crossing outer periphery threads hole, the end of optical axis compressed part coordinates with packing ring upper surface.
3. a kind of nut connecting structure as claimed in claim 2, is characterized in that, described external thread part passes through with optical axis compressed part
The transition circle conical surface connects, and the outside diameter of described packing ring is equal with the outside diameter of nut body.
4. a kind of nut connecting structure as claimed in claim 2, is characterized in that, the major part portion of tightening of described housing screw uses
Regular polygon structure.
5. a kind of nut connecting structure as claimed in claim 1, is characterized in that, the two of the neutral threaded hole of described nut body
End face is provided with the little conical chamfering of outer imperial palace or R fillet.
6. a kind of nut connecting structure as claimed in claim 1, is characterized in that, outside the both ends of the surface in described outer periphery threads hole are provided with
The conical chamfering that imperial palace is little.
7. a kind of nut connecting structure as claimed in claim 1, is characterized in that, set at the both ends of the surface cylindrical of described nut body
There is chamfering.
8. a kind of nut connecting structure as claimed in claim 2, is characterized in that, the end of described optical axis compressed part is provided with unhairing
The smooth chamfering of thorn.
9. a kind of nut connecting structure as claimed in claim 2, is characterized in that, optical axis compressed part end is shiny surface.
10. a kind of nut connecting structure as claimed in claim 1, is characterized in that, described nut body, packing ring, housing screw
Surface be provided with improve surface friction property manganese phosphate coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620732184.5U CN205806175U (en) | 2016-07-12 | 2016-07-12 | A kind of nut connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620732184.5U CN205806175U (en) | 2016-07-12 | 2016-07-12 | A kind of nut connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806175U true CN205806175U (en) | 2016-12-14 |
Family
ID=57510127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620732184.5U Active CN205806175U (en) | 2016-07-12 | 2016-07-12 | A kind of nut connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806175U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108481103A (en) * | 2018-03-13 | 2018-09-04 | 宝鸡石油机械有限责任公司 | The method for improving pushing tow screw small end face and gasket contact precision in breakaway nut |
| CN110242657A (en) * | 2019-07-03 | 2019-09-17 | 瑞安市繁盛紧固件股份有限公司 | Outer-hexagonal nut |
-
2016
- 2016-07-12 CN CN201620732184.5U patent/CN205806175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108481103A (en) * | 2018-03-13 | 2018-09-04 | 宝鸡石油机械有限责任公司 | The method for improving pushing tow screw small end face and gasket contact precision in breakaway nut |
| CN110242657A (en) * | 2019-07-03 | 2019-09-17 | 瑞安市繁盛紧固件股份有限公司 | Outer-hexagonal nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |