CN108999867A - The more pushing tow pre-tightening apparatus of compact - Google Patents
The more pushing tow pre-tightening apparatus of compact Download PDFInfo
- Publication number
- CN108999867A CN108999867A CN201811147061.5A CN201811147061A CN108999867A CN 108999867 A CN108999867 A CN 108999867A CN 201811147061 A CN201811147061 A CN 201811147061A CN 108999867 A CN108999867 A CN 108999867A
- Authority
- CN
- China
- Prior art keywords
- pushing tow
- superhard
- gasket
- nut body
- hole
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000013011 mating Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention relates to a kind of more pushing tow pre-tightening apparatus of compact, superhard gasket is provided with below nut body, circular through hole is provided in the middle part of the superhard gasket, the nut body center is provided with the threaded hole of perforation nut body, the superhard gasket circular through hole is corresponding with nut screwed hole of centre, the superhard shim through bore is inserted in screw flight end, superhard gasket lower end surface and connected piece connect, the nut body screwed hole of centre and the external screw thread at screw flight end screw mating connection, several tapped through holes have been evenly arranged around the nut body screwed hole of centre, pushing tow bolt is connected through a screw thread in several tapped through holes, the pushing tow stud base and superhard gasket upper surface, which contradict, to be connected.The present invention distinguishes compared with conventional bolt fastener is that driving screw is separated with nut head, and the axial force on screw rod is uniformly distributed on multiple pushing tow bolts, passes through the axial tensile force for tightening acquisition screw rod of multiple pushing tow bolts, mechanical advantage with higher.
Description
Technical field
The present invention relates to a kind of fastening bolt device, the more pushing tow pre-tightening apparatus of especially a kind of screw bolt-type for fastening.
Background technique
Bolted purpose is to realize the stabilization of connected compcnent by bolt, be reliably connected, this is just needed before use
Using reasonable manner pretension bolt, accurate, lasting pretightning force is generated.The bolt fastener currently largely used is usually to lead
The form of screw rod and nut head integrally connected generallys use the methods of hammering, heating, hydraulic spanner to realize fastening, but these
There is the disadvantages of preload low precision, inconvenient for operation in method.
Summary of the invention
It is short that the present invention is to provide for a kind of preload precision height, lasting stability, fastening time, can be improved the tight of anti-loose ability
The more pushing tow pre-tightening apparatus of the type that gathers.
To achieve the above object, the technical scheme is that a kind of more pushing tow pre-tightening apparatus of compact, including nut sheet
Body, nut body lower section are provided with superhard gasket, are provided with circular through hole in the middle part of the superhard gasket, the nut body center is opened
There is the threaded hole of perforation nut body, the superhard gasket circular through hole is corresponding with nut screwed hole of centre, the superhard gasket
Through-hole is inserted in screw flight end, and superhard gasket lower end surface and connected piece connect, the nut body screwed hole of centre with
The external screw thread at screw flight end screws mating connection, and it is logical that several screw threads have been evenly arranged around the nut body screwed hole of centre
Hole is connected through a screw thread pushing tow bolt in several tapped through holes, and the pushing tow stud base supports with superhard gasket upper surface
Touching connection.
It further, is interior hexagonal structure at the top of the pushing tow bolt, after the installation is completed, the interior hexagonal structure sinks to nut
In through hole whorl.
Further, the pushing tow bolt is eight, is evenly arranged on around nut centre bore in a ring.
Further, the superhard gasket is hard stainless steel gasket.
The beneficial effects of the present invention are:
The more pushing tow pre-tightening apparatus of compact of the invention are distinguished compared with conventional bolt fastener is driving screw and nut
Axial force on screw rod is uniformly distributed on multiple pushing tow bolts by head separation, more pushing tow pre-tightening apparatus, passes through multiple pushing tows
Bolt tightens the axial tensile force for obtaining screw rod, mechanical advantage with higher.
The pretightning force error of more pushing tow pre-tightening apparatus is can be controlled within 5%~10%, greatly improves pretightning force
Accuracy class.
The pushing tow diameter of bolt is small, and the screw-down torque needed is smaller, can be completed and tightens using manual torque spanner, contracts significantly
The short fastening time improves working efficiency.
After being installed in place, pushing tow bolt is embedded in nut body tapped through hole, effectively reduces more pushing tow pre-tightening apparatus
Installation space realizes compact.
Detailed description of the invention
Fig. 1 is the top view of the more pushing tow pre-tightening apparatus of compact of the invention；
Fig. 2 is the cross-sectional view of the more pushing tow pre-tightening apparatus of compact of the invention；
Fig. 3 is the more pushing tow pre-tightening apparatus use state cross-sectional views of compact of the invention.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
Such as Fig. 1, shown in 2,3, a kind of more pushing tow pre-tightening apparatus of compact, including cylindrical nut body 1, nut body
1 lower section is provided with superhard gasket 3, and circular through hole is provided in the middle part of superhard gasket 3, and 1 center of nut body is provided with perforation nut body 1
Threaded hole, superhard 3 central circular through-hole of gasket is corresponding with 1 screwed hole of centre of nut body, superhard 3 central circular through-hole of gasket
It is inserted in 5 end of thread of screw rod, superhard 3 lower end surface of gasket and connected piece 4 connect, 1 screwed hole of centre of nut body and screw rod
The external screw thread of the end of thread screws cooperation, and several tapped through holes, several screw threads have been evenly arranged around 1 screwed hole of centre of nut body
Pushing tow bolt 2 is connected in through-hole, 2 bottom of pushing tow bolt and superhard 3 upper surface of gasket, which contradict, to be connected.
In the present invention, pushing tow bolt 2 is connect with several tapped through holes on nut body 1, by screwing pushing tow bolt 2,
Pushing tow bolt 2 can be made to abut against with superhard gasket 3；
It is interior hexagonal structure at the top of pushing tow bolt 2 in the present invention, corresponding allen wrench can be used and tighten, pacifies
Pushing tow bolt 2 is sunk in 1 tapped through hole of nut body after dress, and it is exposed to avoid 2 head of pushing tow bolt；
In the present invention, pushing tow bolt 2 is eight, is evenly arranged on 1 centre bore surrounding of nut body in a ring, which pushes up more
The pretightning force for pushing away pre-tightening apparatus is directly proportional to the product of the quantity of pushing tow bolt 2 and nominal diameter, can also set according to the needs of use
Count more pushing tow bolts 2；
In the present invention, superhard gasket 3 is hard stainless steel gasket, has the characteristics that intensity is high, hardness is big, wearability is good.
Claims (4)
1. a kind of more pushing tow pre-tightening apparatus of compact, including nut body, it is characterised in that: be provided with below the nut body
Superhard gasket, the superhard gasket middle part are provided with circular through hole, and the nut body center is provided with the screw thread of perforation nut body
Hole, the superhard gasket circular through hole is corresponding with nut screwed hole of centre, and the superhard shim through bore is inserted in screw flight end, surpasses
Hard packing piece lower end surface and connected piece connect, and the nut body screwed hole of centre and the external screw thread at screw flight end screw
It is cooperatively connected, has been evenly arranged several tapped through holes around the nut body screwed hole of centre, in several tapped through holes
It is connected through a screw thread pushing tow bolt, the pushing tow stud base and superhard gasket upper surface, which contradict, to be connected.
2. the more pushing tow pre-tightening apparatus of compact according to claim 1, it is characterised in that: be interior at the top of the pushing tow bolt
Hexagonal structure, after the installation is completed, the interior hexagonal structure are sunk in nut through hole screw thread.
3. the more pushing tow pre-tightening apparatus of compact according to claim 1, it is characterised in that: the pushing tow bolt is eight,
It is evenly arranged on around nut centre bore in a ring.
4. the more pushing tow pre-tightening apparatus of compact according to claim 1, it is characterised in that: the superhard gasket be hard not
Become rusty steel plate washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811147061.5A CN108999867A (en) | 2018-09-29 | 2018-09-29 | The more pushing tow pre-tightening apparatus of compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811147061.5A CN108999867A (en) | 2018-09-29 | 2018-09-29 | The more pushing tow pre-tightening apparatus of compact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108999867A true CN108999867A (en) | 2018-12-14 |
Family
ID=64589053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811147061.5A Pending CN108999867A (en) | 2018-09-29 | 2018-09-29 | The more pushing tow pre-tightening apparatus of compact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108999867A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692561A (en) * | 2021-01-26 | 2021-04-23 | 江苏格纳特连接***有限公司 | High stability thrustor |
| CN114294312A (en) * | 2022-01-06 | 2022-04-08 | 四川精诚能源设备有限公司 | Anti-loosening super bolt |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989362Y (en) * | 2006-12-14 | 2007-12-12 | 中国船舶重工集团公司第七一九研究所 | Multistage push-tow linkage fastener |
| EP2143521A1 (en) * | 2008-07-07 | 2010-01-13 | Steinbock Machinery Co. | A multi jackbolt tensioner including tamper resistant jackbolts |
| CN101799035A (en) * | 2009-02-10 | 2010-08-11 | 南通高盛机械制造有限公司 | Multistage push fastener with detection interface |
| CN102635619A (en) * | 2012-04-17 | 2012-08-15 | 常州轩达液压机电设备有限公司 | Pushing tension device |
| CN204061484U (en) * | 2014-08-11 | 2014-12-31 | 龚征宇 | A kind of pretightening force fastening piece |
| CN207005045U (en) * | 2017-07-14 | 2018-02-13 | 大连罗斯泵业有限公司 | A kind of nut pre-tightening mechanism |
| WO2018154795A1 (en) * | 2017-02-24 | 2018-08-30 | ボルトエンジニア株式会社 | Fastening structure |
| CN209115505U (en) * | 2018-09-29 | 2019-07-16 | 中国船舶重工集团公司第七0四研究所 | The more pushing tow pre-tightening apparatus of compact |
-
2018
- 2018-09-29 CN CN201811147061.5A patent/CN108999867A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989362Y (en) * | 2006-12-14 | 2007-12-12 | 中国船舶重工集团公司第七一九研究所 | Multistage push-tow linkage fastener |
| EP2143521A1 (en) * | 2008-07-07 | 2010-01-13 | Steinbock Machinery Co. | A multi jackbolt tensioner including tamper resistant jackbolts |
| CN101799035A (en) * | 2009-02-10 | 2010-08-11 | 南通高盛机械制造有限公司 | Multistage push fastener with detection interface |
| CN102635619A (en) * | 2012-04-17 | 2012-08-15 | 常州轩达液压机电设备有限公司 | Pushing tension device |
| CN204061484U (en) * | 2014-08-11 | 2014-12-31 | 龚征宇 | A kind of pretightening force fastening piece |
| WO2018154795A1 (en) * | 2017-02-24 | 2018-08-30 | ボルトエンジニア株式会社 | Fastening structure |
| CN207005045U (en) * | 2017-07-14 | 2018-02-13 | 大连罗斯泵业有限公司 | A kind of nut pre-tightening mechanism |
| CN209115505U (en) * | 2018-09-29 | 2019-07-16 | 中国船舶重工集团公司第七0四研究所 | The more pushing tow pre-tightening apparatus of compact |
Non-Patent Citations (1)
| Title |
|---|
| 祁晓辉;张林;: "顶推螺母组件在气化炉上的应用", 石油化工设备, no. 04 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692561A (en) * | 2021-01-26 | 2021-04-23 | 江苏格纳特连接***有限公司 | High stability thrustor |
| CN114294312A (en) * | 2022-01-06 | 2022-04-08 | 四川精诚能源设备有限公司 | Anti-loosening super bolt |
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