CN201711936U - Device for dismounting broken bolt - Google Patents
Device for dismounting broken bolt Download PDFInfo
- Publication number
- CN201711936U CN201711936U CN201020255488XU CN201020255488U CN201711936U CN 201711936 U CN201711936 U CN 201711936U CN 201020255488X U CN201020255488X U CN 201020255488XU CN 201020255488 U CN201020255488 U CN 201020255488U CN 201711936 U CN201711936 U CN 201711936U
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- CN
- China
- Prior art keywords
- bolt
- sleeve
- diameter
- break
- pull bar
- 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
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Abstract
The utility model relates to a device for dismounting a broken bolt, which comprises an engagement part for engaging with the breakage part of the broken bolt and a spanner for rotating the engagement part. The engagement part is a sleeve (4); conical threads with spiral direction opposite to the spiral direction of the broken bolt are formed on the inner wall of the sleeve, and the diameters of the conical threads change from the diameter larger than the diameter of the broken bolt to the diameter smaller than the diameter of the broken bolt; the sleeve (4) is connected with the spanner (6) through a drawbar (5) on the axial line of the sleeve; and the outer diameters of the sleeve and the drawbar are both smaller than the diameter of a bolt hole (12) at the broken bolt (3). Compared with the prior art, the device provided by the utility model uses the spanner to hold the other end of the drawbar to rotate in the opposite direction, so that the anti-conical internal threads of the drawbar can engage with the broken bolt, and the broken bolt is screwed out from a T-shaped wind-energy nut. The device can conveniently take out the broken bolt, and is simple and practical.
Description
Technical field
The utility model relates to a kind of break bolt provision for disengagement, especially a kind ofly will break at the break bolt provision for disengagement that the bolt the deep hole splits out, belong to the hand-operated tools technical field of dismounting in the operation or clamping operation from bolt shank.
Background technology
Break bolt is meant that bolt because of a variety of causes bolt residual fraction behind the bolt head that fracture loses rotating bolt takes place, and this residual fraction still is engaged on the nut.Can both extract bolt hole out with nut in most of occasion break bolt, bolt hole is meant the unthreaded hole of the interspersed bolt that does not have screw thread, but if nut is that parts itself or nut are embedded within the parts, then will remove the break bolt that does not have bolt head is not the part nothing the matter.The instrument that can also use pliers one class if fracture place of bolt exceeds bolt hole is bitten backspin with bolt and is gone out, but being in as if bolt fracture then will be with one section pole being welded on fracture place or pounding out the dark more difficult more dismounting of bolt hole with little bottle opener is piecemeal in the bolt hole.As: wind-driven generator air vane and rotor is by fixedlying connected with a kind of leptosomatic stud with the similar structure of flange, resistance when rotating for reducing windmill, the nut that this stud is fixed in blade one end is embedded at the bottom of the blade medium-length hole hole.Fracture place of the break bolt on this blade is in the bolt hole depths.And this break bolt is used not only trouble of prior art dismounting, and accidentally will destroy the nut that is connected with the break bolt afterbody, that have even get to come out, must remove whole blade could remove fully, makes troubles for like this maintenance of air vane or causes more serious complete machine damage sequence.
The innovation and creation content
At above-mentioned deficiency, the utility model is exactly the break bolt provision for disengagement that will propose a kind of easy to maintenance, simple and easy practicality.
Break bolt provision for disengagement of the present utility model, the spanner that the clench part of biting break bolt fracture place is arranged and the clench part is rotated, wherein said clench part is a sleeve, the hand of spiral taper thread opposite with the break bolt hand of spiral arranged on the sleeve lining, the diameter of taper thread from greater than the break bolt diameter to less than the break bolt vary in diameter, pull bar between sleeve and the spanner on sleeve axis is connected, and the external diameter of sleeve and pull bar is all less than the residing diameter of bolt hole of break bolt.
Compared with the prior art, break bolt provision for disengagement of the present utility model is vised the other end of drag link sleeve tube and is done backward rotation by spanner, but makes the anti-awl internal thread interlock break bolt head of pull bar sleeve, and break bolt is screwed out from T shape wind energy nut.Therefore the utility model can reach the purpose of taking out break bolt, simple and easy practicality easily.
Taper thread in the said sleeve is that bull is uniform, so that have bigger and biting force balance to break bolt.
Also have screw thread on the said pull bar and be furnished with pull-rod nut and area greater than the pressing plate of bolt hole so that available pull-rod nut is pulled out bolt hole relative to rotating of pull bar with break bolt, the screw thread on the pull bar preferably and taper thread be same direction of rotation.
Relative pull bar symmetry is arranged on the said pressing plate and be parallel to the screw thread of pull bar, screw thread is furnished with bolt, makes to cooperate more easily with pull-rod nut break bolt is pulled out bolt hole.
Description of drawings
Accompanying drawing is the cutaway view of the utility model one embodiment, among the figure: the 1-blade, 2-T shape round nut, the 3-break bolt, the 4-sleeve, the 5-pull bar, the 6-spanner, 7-tie rod end parallel surface, 8-sleeve nut, the 9-packing ring, the 10-pressing plate, 11-regulates bolt, 12-bolt hole.
The specific embodiment
As shown in drawings, a break bolt 3 is in the bolt hole 12 deep hole positions of wind-driven generator air vane 1, and with T shape round nut 2 immovable fitting.Used break bolt provision for disengagement has a pull bar 5, and pull bar one end is a sleeve 4, and the other end is the parallel surface 7 supporting with spanner 6, all on same axis.Eight anti-awl internal threads (bolt that will dismantle is a plus thread) are arranged in this sleeve, the outside diameter of taper thread is greater than the bolt fracture place, end diameter is less than the bolt fracture place, and the big end of taper thread is a not end of cylinder lever connecting rod of sleeve, and taper thread can be enclosed within outside the bolt fracture place.Said pull bar partly also has screw thread and is furnished with a sleeve nut 8, is furnished with packing ring 9 and pressing plate 10 under the sleeve nut outside pull bar, and each originally has the bolt 11 of adjusting through screw thread the pressing plate two ends.
During use, elder generation inserts with the pull bar sleeve and makes it have the sleeve endoporus of eight anti-awl internal threads to be inserted in break bolt tightly in the deep hole, and oppositely (towards break bolt counterclockwise) rotation, utilizes pull bar sleeve inside tapered thread to bite the break bolt head; Fasten one group of parallel surface of pull bar sleeve upper end again with spanner, continue reverse rotation pull bar sleeve, make it also drive the break bolt reverse rotation, till whole back-out T-nuts.Sometimes,, or cause the distortion of break bolt, might after screwing out screw thread, be difficult to extract because polished rod is thin in the middle of the break bolt, screw thread position, two ends is thick.Will use pressing plate to pack into the pull bar sleeve in this case, will regulate bolt and pull-rod nut is used, progressively break bolt all be pulled out the deep hole position.Wherein regulate bolt and regulate pressing plate and support the distance between the blade and the balance of pressing plate with regulating the bolt end, screw thread moves axially the relative pressing plate of pull bar on the pull-rod nut cooperation pull bar.
Claims (5)
1. break bolt provision for disengagement, the spanner that the clench part of biting break bolt fracture place is arranged and the clench part is rotated, it is characterized in that said clench part is a sleeve, the hand of spiral taper thread opposite with the break bolt hand of spiral arranged on the sleeve lining, the diameter of taper thread from greater than the break bolt diameter to less than the break bolt vary in diameter, pull bar between sleeve and the spanner on sleeve axis is connected, and the external diameter of sleeve and pull bar is all less than the residing diameter of bolt hole of break bolt.
2. break bolt provision for disengagement as claimed in claim 1 is characterized in that the taper thread in the said sleeve is that bull is uniform.
3. break bolt provision for disengagement as claimed in claim 1 or 2, it is characterized in that on the said pull bar also having screw thread and be furnished with pull-rod nut and area greater than the pressing plate of bolt hole.
4. break bolt provision for disengagement as claimed in claim 3, it is characterized in that on the said pull bar screw thread preferably and taper thread be same direction of rotation.
5. break bolt provision for disengagement as claimed in claim 3, the screw thread that it is characterized in that relative pull bar symmetry is arranged on the said pressing plate and be parallel to pull bar, screw thread is furnished with bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020255488XU CN201711936U (en) | 2010-07-06 | 2010-07-06 | Device for dismounting broken bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020255488XU CN201711936U (en) | 2010-07-06 | 2010-07-06 | Device for dismounting broken bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201711936U true CN201711936U (en) | 2011-01-19 |
Family
ID=43457935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020255488XU Expired - Fee Related CN201711936U (en) | 2010-07-06 | 2010-07-06 | Device for dismounting broken bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201711936U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122766A (en) * | 2013-03-26 | 2013-05-29 | 永城煤电控股集团有限公司 | Three-purpose valve assembly special tool |
| CN103506838A (en) * | 2013-07-08 | 2014-01-15 | 杭州岩土工程有限公司 | Method for detaching damaged bolt |
| CN104227320A (en) * | 2014-09-12 | 2014-12-24 | 奥展实业有限公司 | Method for separating broken screw in screw hole |
| CN105081827A (en) * | 2015-08-12 | 2015-11-25 | 天津航天液压装备有限公司 | Milling machine clamping clamp for milling and flattening procedure of cylindrical workpiece milling groove |
| CN105798846A (en) * | 2014-12-30 | 2016-07-27 | 南车株洲电力机车研究所有限公司 | Taking out and replacing method for fractured bolt of megawatt-level wind driven generator set blades |
| CN106272253A (en) * | 2016-09-28 | 2017-01-04 | 山东钢铁股份有限公司 | A kind of dismountable type bolt extractor |
| CN109060533A (en) * | 2018-08-09 | 2018-12-21 | 山西省机电设计研究院 | Tooling is used in bolt tension force test |
| CN109079711A (en) * | 2018-09-07 | 2018-12-25 | 吉林大学青岛汽车研究院 | A kind of novel and multifunctional Decapitated bolt extractor |
| CN109571367A (en) * | 2018-11-30 | 2019-04-05 | 河南航天精工制造有限公司 | A kind of stud component method for dismounting and stud component dismantle re-mounting method |
| CN111660249A (en) * | 2020-04-23 | 2020-09-15 | 武汉船用机械有限责任公司 | Dismounting device and dismounting method for bolt for reaming hole |
| CN109079711B (en) * | 2018-09-07 | 2024-05-03 | 吉林大学青岛汽车研究院 | Novel multifunctional broken bolt extractor |
-
2010
- 2010-07-06 CN CN201020255488XU patent/CN201711936U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122766B (en) * | 2013-03-26 | 2015-10-07 | 永城煤电控股集团有限公司 | Triple-use valve special-purpose tool for assembling |
| CN103122766A (en) * | 2013-03-26 | 2013-05-29 | 永城煤电控股集团有限公司 | Three-purpose valve assembly special tool |
| CN103506838A (en) * | 2013-07-08 | 2014-01-15 | 杭州岩土工程有限公司 | Method for detaching damaged bolt |
| CN104227320A (en) * | 2014-09-12 | 2014-12-24 | 奥展实业有限公司 | Method for separating broken screw in screw hole |
| CN105798846B (en) * | 2014-12-30 | 2017-08-25 | 南车株洲电力机车研究所有限公司 | A kind of MW class wind turbine group leaf destruction bolt takes out and replacing options |
| CN105798846A (en) * | 2014-12-30 | 2016-07-27 | 南车株洲电力机车研究所有限公司 | Taking out and replacing method for fractured bolt of megawatt-level wind driven generator set blades |
| CN105081827A (en) * | 2015-08-12 | 2015-11-25 | 天津航天液压装备有限公司 | Milling machine clamping clamp for milling and flattening procedure of cylindrical workpiece milling groove |
| CN106272253A (en) * | 2016-09-28 | 2017-01-04 | 山东钢铁股份有限公司 | A kind of dismountable type bolt extractor |
| CN109060533A (en) * | 2018-08-09 | 2018-12-21 | 山西省机电设计研究院 | Tooling is used in bolt tension force test |
| CN109079711A (en) * | 2018-09-07 | 2018-12-25 | 吉林大学青岛汽车研究院 | A kind of novel and multifunctional Decapitated bolt extractor |
| CN109079711B (en) * | 2018-09-07 | 2024-05-03 | 吉林大学青岛汽车研究院 | Novel multifunctional broken bolt extractor |
| CN109571367A (en) * | 2018-11-30 | 2019-04-05 | 河南航天精工制造有限公司 | A kind of stud component method for dismounting and stud component dismantle re-mounting method |
| CN111660249A (en) * | 2020-04-23 | 2020-09-15 | 武汉船用机械有限责任公司 | Dismounting device and dismounting method for bolt for reaming hole |
| CN111660249B (en) * | 2020-04-23 | 2022-09-30 | 武汉船用机械有限责任公司 | Device and method for disassembling bolt for reaming hole |
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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: 20110119 Termination date: 20180706 |