CN107763053A - A kind of pre-stressed bolt - Google Patents
A kind of pre-stressed bolt Download PDFInfo
- Publication number
- CN107763053A CN107763053A CN201610690350.4A CN201610690350A CN107763053A CN 107763053 A CN107763053 A CN 107763053A CN 201610690350 A CN201610690350 A CN 201610690350A CN 107763053 A CN107763053 A CN 107763053A
- Authority
- CN
- China
- Prior art keywords
- bolt
- rod section
- spiro rod
- elastic
- elastic bumps
- 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.)
- Withdrawn
Links
- 125000003003 spiro group Chemical group 0.000 claims abstract description 26
- 230000005489 elastic deformation Effects 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
Classifications
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a kind of pre-stressed bolt, including spiro rod section and the screw cap end for being arranged at spiro rod section end, the screw cap end is additionally provided with multiple elastic bumps on the end face of spiro rod section, and the elastic bumps can produce elastic deformation during bolt is tightened.In this structure, there is screw thread on the spiro rod section of setting, for being connected in bolt connection with nut thread, with the connector of fastening interconnection, above screw cap end turns part as what operator's brake screw section rotated.In this structure, by setting elastic bumps on the end face of spiro rod section one end in screw cap end, so, during bolt is tightened, elastic deformation occurs for elastic bumps, and elastic force caused by above elastic deformation can be as the prestressing force of screw retention, so, this bolt is not in the case where matching using cushion, it may have good anti-loosening ability.
Description
Technical field
The present invention relates to mechanical fastener technical field, more particularly to a kind of pre-stressed bolt.
Background technology
Bolt is the cylindrical threaded fastener of a kind of machine components, usually adapted nut.Bolt by head and
Screw rod（With externally threaded cylinder）Two parts form, and need to coordinate with nut during use, for being fastenedly connected two with leading to
The part in hole, this type of attachment claim bolt connection.It as nut is screwed off from bolt, can separate the two parts again,
Therefore bolt connection is to belong to be detachably connected.By the force way point of connection：It is point common and have articulation hole.By head shape
Shape point：There is turret head, round end, square spigot, countersunk head etc..Wherein turret head is the most frequently used.
At present, for bolted locking, a kind of more universal form is to use elastic washer.But in reality
In maintenance process or assembling process, particularly in maintenance process, often because the carelessness or not responsible of maintainer, does not have
Elastic washer is sheathed on bolt, causes tie point to be relaxed under vibrations, the situation for seal failure or connection relaxation occur goes out
It is existing.
The content of the invention
For it is above-mentioned in the prior art reality maintenance process or assembling process in, particularly in maintenance process, warp
Elastic washer can be often sheathed on bolt, causes tie point under vibrations because of the carelessness or not responsible of maintainer
Absent-mindedness, there is the situation produced problem of seal failure or connection relaxation, the invention provides a kind of pre-stressed bolt.
A kind of pre-stressed bolt provided by the invention solves problem by following technical essential：A kind of pre-stressed bolt,
Including spiro rod section and the screw cap end of spiro rod section end is arranged at, the screw cap end is additionally provided with multiple on the end face of spiro rod section
Elastic bumps, the elastic bumps can produce elastic deformation during bolt is tightened.
In this structure, there is screw thread on the spiro rod section of setting, for being connected in bolt connection with nut thread, to fasten phase
The connector to connect, above screw cap end turn part as what operator's brake screw section rotated.In this structure, by spiral shell
Cap end sets elastic bumps on the end face of spiro rod section one end, and so, during bolt is tightened, bullet occurs for elastic bumps
Property deformation, elastic force caused by above elastic deformation can as the prestressing force of screw retention, so, this bolt do not matching use
In the case of cushion, it may have good anti-loosening ability.
Further technical scheme is：
To cause above prestressing force to be uniformly distributed in the circumference of bolt, the elastic bumps are in ring relative to the axis of spiro rod section
Shape is uniform.
Further technical scheme, the elastic bumps are uniformly distributed in the circumference of bolt as above prestressing force is caused
Number be more than 3.
As a kind of bolt pattern for being easy to processing and manufacturing, the screw cap end, spiro rod section and elastic bumps are to pass through casting
The overall structure formed.
The invention has the advantages that：
In this structure, there is screw thread on the spiro rod section of setting, for being connected in bolt connection with nut thread, mutually interconnected with fastening
The connector connect, above screw cap end turn part as what operator's brake screw section rotated.In this structure, by screw cap end
Elastic bumps are set on the end face of spiro rod section one end, so, during bolt is tightened, elastic shape occurs for elastic bumps
Become, elastic force caused by above elastic deformation can be as the prestressing force of screw retention, and so, this bolt is not being matched using elasticity
In the case of pad, it may have good anti-loosening ability.
Brief description of the drawings
Fig. 1 is a kind of structural representation of one specific embodiment of pre-stressed bolt of the present invention.
Numbering in figure is followed successively by：1st, screw cap end, 2, spiro rod section, 3, elastic bumps.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the present invention structure be not limited only to it is following
Embodiment.
Embodiment 1：
As shown in figure 1, a kind of pre-stressed bolt, including spiro rod section and the screw cap end 1 for being arranged at spiro rod section end, the screw cap end
1 is additionally provided with multiple elastic bumps 3 on the end face of spiro rod section, and the elastic bumps 3 can produce during bolt is tightened
Raw elastic deformation.
In this structure, there is screw thread on the spiro rod section 2 of setting, for being connected in bolt connection with nut thread, with fastening
The connector of interconnection, above screw cap end 1 turn part as what operator's brake screw section 2 rotated.In this structure, pass through
Elastic bumps 3 are set on the end face of the one end of spiro rod section 2 in screw cap end 1, so, during bolt is tightened, elasticity is convex
Play 3 and elastic deformation occurs, elastic force caused by above elastic deformation can be as the prestressing force of screw retention, and so, this bolt exists
Do not match using in the case of cushion, it may have good anti-loosening ability.
Embodiment 2：
As shown in figure 1, the present embodiment is further qualified on the basis of embodiment 1：To cause above prestressing force in bolt
It is uniformly distributed in circumference, the elastic bumps 3 are annularly uniform relative to the axis of spiro rod section.
Further technical scheme, the elastic bumps are uniformly distributed in the circumference of bolt as above prestressing force is caused
3 number is more than 3.
As a kind of bolt pattern for being easy to processing and manufacturing, the screw cap end 1, spiro rod section and elastic bumps 3 are to pass through casting
The overall structure made.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to assert this
The embodiment of invention is confined to these explanations.For general technical staff of the technical field of the invention,
The other embodiment drawn in the case where not departing from technical scheme, should be included within the scope of the present invention.
Claims (4)
1. a kind of pre-stressed bolt, including spiro rod section（2）And it is arranged at spiro rod section（2）The screw cap end of end（1）, its feature exists
In the screw cap end（1）Close to spiro rod section（2）End face on be additionally provided with multiple elastic bumps（3）, the elastic bumps（3）
Elastic deformation can be produced during bolt is tightened.
A kind of 2. pre-stressed bolt according to claim 1, it is characterised in that the elastic bumps（3）Relative to screw rod
Section（2）Axis it is annularly uniform.
A kind of 3. pre-stressed bolt according to claim 2, it is characterised in that the elastic bumps（3）Number be more than 3
It is individual.
A kind of 4. pre-stressed bolt according to claim 1, it is characterised in that the screw cap end（1）, spiro rod section（2）And
Elastic bumps（3）For by casting the overall structure formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610690350.4A CN107763053A (en) | 2016-08-20 | 2016-08-20 | A kind of pre-stressed bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610690350.4A CN107763053A (en) | 2016-08-20 | 2016-08-20 | A kind of pre-stressed bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107763053A true CN107763053A (en) | 2018-03-06 |
Family
ID=61261844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610690350.4A Withdrawn CN107763053A (en) | 2016-08-20 | 2016-08-20 | A kind of pre-stressed bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107763053A (en) |
-
2016
- 2016-08-20 CN CN201610690350.4A patent/CN107763053A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |
|
| WW01 | Invention patent application withdrawn after publication |