CN205806171U - A kind of bolt fastening structure - Google Patents
A kind of bolt fastening structure Download PDFInfo
- Publication number
- CN205806171U CN205806171U CN201620732128.1U CN201620732128U CN205806171U CN 205806171 U CN205806171 U CN 205806171U CN 201620732128 U CN201620732128 U CN 201620732128U CN 205806171 U CN205806171 U CN 205806171U
- Authority
- CN
- China
- Prior art keywords
- bolt
- threaded joints
- compressed part
- bolt fastening
- fastening structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims description 15
- CPSYWNLKRDURMG-UHFFFAOYSA-L hydron;manganese(2+);phosphate Chemical compound [Mn+2].OP([O-])([O-])=O CPSYWNLKRDURMG-UHFFFAOYSA-L 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 208000031481 Pathologic Constriction Diseases 0.000 claims 1
- 210000001215 vagina Anatomy 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 235000010599 Verbascum thapsus Nutrition 0.000 description 2
- 244000178289 Verbascum thapsus Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001503485 Mammuthus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a kind of bolt fastening structure, including bolt body, packing ring, tighten screw, described bolt body includes threaded joints, tightens portion, the described portion of tightening is connected with threaded joints by cylindrical compressed part, the outside diameter of described compressed part is more than the big footpath tightening portion's diameter and threaded joints, described compressed part is laid with multiple screwed hole matched with housing screw along bolt axis, described gasket sleeve is contained in the position near compressed part lower surface, the threaded joints top, and the lower surface of described packing ring 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 bolt fastening 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, bolt fastening 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 bolted-on attachment
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, is particularly suited for the occasion that main equipment needs to connect, meets city
Field demand.
This utility model solves the technical scheme of technical problem:
A kind of bolt fastening structure, including bolt body, packing ring, tightens screw, and described bolt body includes threaded
Portion, tighten portion, described in the portion of tightening be connected with threaded joints by cylindrical compressed part, the outside diameter of described compressed part is big
In tightening the big footpath of portion's diameter and threaded joints, described compressed part is laid with multiple with housing screw phase along bolt axis
The screwed hole coordinated, described gasket sleeve is contained in the position near compressed part lower surface, the threaded joints top, under described packing ring
End face coordinates with the end face of connected piece.
Being provided with the optical axis portion that cylindrical is smooth between described threaded joints and compressed part, threaded joints passes through with compressed part
Optical axis portion connects, and the optical axis portion external cylindrical surface near threaded joints position is provided with annular groove one, described optical axis portion and pressure
The connecting portion of tight subordinate's end face is provided with cannelure two.
Described washer outer diameter is identical with the external diameter of compressed part.
The axis of described screwed hole is positioned on the face of cylinder that bolt axis is axis.
The outside diameter in described optical axis portion is identical with the big footpath of threaded joints.
The described portion of tightening uses regular polygon structure；The circumscribed circle diameter of described regular polygon structure is less than threaded joints
Big footpath.
Described screw of tightening includes male end, tightens end, and described male end is connected by middle cylindrical projection portion,
The outside diameter in described cylindrical projection portion is more than big footpath and the circumscribed circle diameter of regular polygon structure of male end.
Tighten end and use regular polygon structure.
The end of described male end is connected with short external cylindrical surface, and described short external cylindrical surface and male end pass through taper seat
Transition connects.
The end of threaded joints is provided with big taper seat chamfering.
Described bolt body, packing ring, tighten the surface of screw and be provided with the manganese phosphate coating layer improving surface friction property.
The beneficial effects of the utility model:
1. this utility model compact conformation, equipment installation, maintenance, dismounting are more convenient so that the connection of large-sized bolt fastening
Easier, 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
The occasion that nut connects, meets the market demand.Moment of torsion owing to applying in the portion of tightening is smaller, and the portion of tightening can use less
Size, what other housing screw was arranged can be closer to the axial location of bolt, and the structure of other housing screws
In the case of smaller, by the coordinative role of multiple housing screws, it is ensured that reliably connected piece is connected firmly, make again
Obtain 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 for tightening bolt structure schematic diagram.
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 bolt fastening structure, including bolt body 1, packing ring 3, tighten screw 2, described spiral shell
Bolt body 1 includes threaded joints 12, tightens portion 11, described in tighten portion 11 by cylindrical compressed part 13 and threaded joints
12 connect, and the outside diameter of described compressed part 13 is more than the big footpath tightening portion 11 diameter and threaded joints 12, described compressed part
13 are laid with multiple screwed hole matched with housing screw 2 along bolt axis, and described packing ring 3 is sleeved on threaded joints
12 tops are near the position of compressed part 13 lower surface.The lower surface 31 of packing ring 3 coordinates with the end face of connected piece.Described packing ring 3
External diameter is identical with the external diameter of compressed part 13.The end of threaded joints 12 is provided with big taper seat chamfering 16.
Described bolt body 1, packing ring 3, tighten the surface of screw 2 and be provided with the manganese phosphate coating improving surface friction property
Layer.
The axis of described screwed hole is positioned on the face of cylinder that bolt axis is axis.
The optical axis portion 17 that cylindrical is smooth, threaded joints 12 and pressure it is provided with between described threaded joints 12 and compressed part 13
Tight portion 13 is connected by optical axis portion 17, and optical axis portion 17 external cylindrical surface near threaded joints 12 position is provided with annular groove one
14, described optical axis portion 17 is provided with cannelure 2 15 with the connecting portion of compressed part 13 lower surface.
The outside diameter in described optical axis portion 17 is identical with the big footpath of threaded joints 12.It is easy to workpiece size processing, improves
Manufacture efficiency, reduce production cost.
Described portion 11 of tightening uses regular polygon structure.The circumscribed circle diameter of regular polygon structure is less than threaded joints 12
Big footpath.Moment of torsion owing to applying in the portion of tightening 11 is smaller, tightens portion 11 and can use less size, other compression spiral shell
Nail 2 layout can be closer to the axial location of bolt, and the structure of other housing screws 2 is in the case of smaller,
Coordinative role by multiple housing screws 2, it is ensured that be reliably connected firmly by connected piece, makes again overall structure more step up
Gather.
This utility model preferentially uses positive six prism structures or four-prism structure.
Described screw 2 of tightening includes male end 23, tightens end 21, and described male end is by middle cylindrical projection portion
22 connect, and the outside diameter in described cylindrical projection portion 22 is straight more than the circumscribed circle in the big footpath of male end 23 and regular polygon structure
Footpath.
Tighten end 21 employing regular polygon structure, such as positive six prism structures or four-prism structure.
The end of described male end 23 is connected with short external cylindrical surface 24, and described short external cylindrical surface 24 leads to male end 23
Cross taper seat 25 transition to connect.
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 bolt fastening structure, is characterized in that, including bolt body, packing ring, tightens screw, and described bolt body includes spiral shell
Stricture of vagina connecting portion, tighten portion, described in the portion of tightening be connected with threaded joints by cylindrical compressed part, the cylindrical of described compressed part
Diameter is more than the big footpath tightening portion's diameter and threaded joints, and described compressed part is laid with multiple along bolt axis and compresses
The screwed hole that screw matches, described gasket sleeve is contained in the position near compressed part lower surface, the threaded joints top, described pad
The lower surface of circle coordinates with the end face of connected piece.
2. a kind of bolt fastening structure as claimed in claim 1, is characterized in that, set between described threaded joints and compressed part
Having the optical axis portion that cylindrical is smooth, threaded joints is connected by optical axis portion with compressed part, near the optical axis of threaded joints position
Portion's external cylindrical surface is provided with annular groove one, and described optical axis portion is provided with cannelure two with the connecting portion of compressed part lower surface.
3. bolt fastening structure as claimed in claim 1 a kind of, is characterized in that, the external diameter phase of described washer outer diameter and compressed part
With.
4. a kind of bolt fastening structure as claimed in claim 1, is characterized in that, the axis of described screwed hole is positioned at bolt axis
For on a face of cylinder of axis.
5. a kind of bolt fastening structure as claimed in claim 2, is characterized in that, the outside diameter in described optical axis portion is with screw thread even
The big footpath meeting portion is identical.
6. bolt fastening structure as claimed in claim 1 a kind of, is characterized in that, described in the portion of tightening use regular polygon structure；
The circumscribed circle diameter of described regular polygon structure is less than the big footpath of threaded joints.
7. bolt fastening structure as claimed in claim 1 a kind of, is characterized in that, described in tighten screw and include male end, twist
Tight end, described male end is connected by middle cylindrical projection portion, and the outside diameter in described cylindrical projection portion is more than external screw thread
The big footpath of end and the circumscribed circle diameter of regular polygon structure.
8. a kind of bolt fastening structure as claimed in claim 7, is characterized in that, tightens end and uses regular polygon structure.
9. a kind of bolt fastening structure as claimed in claim 7, is characterized in that, the end of described male end and short outside cylinder
Face connects, and described short external cylindrical surface is connected by taper seat transition with male end；The end of threaded joints is provided with big circle
Conical surface chamfering.
10. bolt fastening structure as claimed in claim 1 a kind of, is characterized in that, described bolt body, packing ring, tightens screw
Surface be provided with improve surface friction property manganese phosphate coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620732128.1U CN205806171U (en) | 2016-07-12 | 2016-07-12 | A kind of bolt fastening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620732128.1U CN205806171U (en) | 2016-07-12 | 2016-07-12 | A kind of bolt fastening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806171U true CN205806171U (en) | 2016-12-14 |
Family
ID=57510803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620732128.1U Expired - Fee Related CN205806171U (en) | 2016-07-12 | 2016-07-12 | A kind of bolt fastening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821938A (en) * | 2019-11-18 | 2020-02-21 | 大连明珠机械有限公司 | An anti-loosening fastening bolt |
-
2016
- 2016-07-12 CN CN201620732128.1U patent/CN205806171U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821938A (en) * | 2019-11-18 | 2020-02-21 | 大连明珠机械有限公司 | An anti-loosening fastening bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 |