CN104646917A - Method for dismounting decollation bolt - Google Patents
Method for dismounting decollation bolt Download PDFInfo
- Publication number
- CN104646917A CN104646917A CN201310588595.2A CN201310588595A CN104646917A CN 104646917 A CN104646917 A CN 104646917A CN 201310588595 A CN201310588595 A CN 201310588595A CN 104646917 A CN104646917 A CN 104646917A
- Authority
- CN
- China
- Prior art keywords
- bolt
- decollation
- triangular
- triangular scraper
- diameter
- 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
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 claims description 3
- 208000028804 PERCHING syndrome Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention discloses a method for dismounting a decollation bolt, and refers to the technical field of repairing. The method for dismounting the decollation bolt comprises the following steps: forming an inner through hole at the center of a fractured bolt remained in a screw hole along the axial direction, wherein the diameter of the inner through hole is less than that of the thread root part of the fractured bolt; stretching a blade point of a triangular scrapper to the inner through hole, and driving the triangular scrapper body into the fractured bolt along the axial direction of the inner through hole, so that the edge of the triangular scrapper is embedded in the fractured bolt, wherein the outside diameter of the triangular scrapper body is more than the diameter of the inner through hole and less than the diameter of the threaded root part of the fractured bolt; clamping a handle of the triangular scrapper by a spanner, wrenching the spanner according to the turning-out direction of the fractured bolt, and driving the fractured bolt to screw out of the screw hole in the course of wrenching the triangular scrapper by the spanner. Compared with the prior art, the method for dismounting the decollation bolt can take out the decollation bolt without the deformation of the screw hole.
Description
Technical field
The present invention relates to maintenance technique field, the method for the thread part that especially a kind of taking-up fractures.
Background technology
Bolt is a kind of common thread part, and it is made up of head and the externally threaded cylinder of band, and be generally used for being fastenedly connected two parts with holes, it is belong to removably connect that bolt connects.In machine-building, shipbuilding industry and plant equipment maintenance process, the bolt head that often can run into bolt fractures, and part broken bolt then remains on equipment and cannot pull down.Run into this situation, usually adopt following two kinds of methods to take out: a kind of method is the little broken bolt path of diameter 1 ~ 2 millimeter of the centre drill inner via hole at broken bolt, inner via hole, is then shoveled out by broken bolt with perching knife; Another kind method attacks an anti-tooth screw at the centre drill of broken bolt, screws in screwed out by broken bolt with anti-tooth bolt.These two kinds of methods all easily destroy the screw on original equipment: the inner via hole diameter that first method is bored is close to the top of equipment inner bolt hole, control bad drill bit when holing easily to bore and partially break inner bolt hole thread, when bolt being shoveled out with perching knife, also easily overexertion breaks inner bolt hole thread, if the inner via hole diameter bored is away from equipment inner bolt hole, at this moment the wall thickness of inner via hole and decollation bolt external diameter is comparatively large again, and decollation bolt shovels out by very difficult perching knife.Second method is in order to strengthen the moment of back-out, and anti-tooth screw will be tried one's best greatly, too little easily causes anti-tooth bolt again to fracture, and anti-tooth tap drill is large, controls bad drill bit also easily bore and partially break inner bolt hole thread when holing.
Summary of the invention
The object of this invention is to provide a kind of decollation bolt method for dismounting, this method can solve the problem of screw on easy destruction original equipment that existing decollation bolt removing method exists.
In order to solve the problem, the technical solution used in the present invention is: this decollation bolt method for dismounting, comprises the following steps:
A, formation inner via hole of holing vertically at the center residuing in the broken bolt in screw, the diameter of described inner via hole is less than the thread root diameter of described broken bolt;
B, the point of a knife of a triangular scraper is stretched into described inner via hole, the blade of described triangular scraper is squeezed into described broken bolt along the axis of described inner via hole, make the blade of described triangular scraper embed in described broken bolt, the blade external diameter of described triangular scraper is greater than the diameter of described inner via hole and is less than the thread root diameter of described broken bolt;
The handle of a knife of triangular scraper described in C, use spanner clamping, pull spanner by the back-out direction of described broken bolt, spanner is pulled in the process of described triangular scraper and is driven described broken bolt to screw out described screw.
In the technical scheme of above-mentioned decollation bolt method for dismounting, technical scheme can also be more specifically: the handle of a knife of described triangular scraper is square cylinder integrated with the blade of described triangular scraper.
Further, the handle of a knife outer surface of described triangular scraper is provided with anti-slip veins.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect: on decollation bolt, bore inner via hole, triangular scraper is made to be easy to squeeze in decollation bolt, significantly reduce the impact dynamics squeezed into by triangular scraper in decollation bolt, and pull the back-out of triangular scraper drive decollation bolt by spanner, screw is less by the impact of external force, can not deformed damaged.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Be the schematic diagram that decollation bolt method for dismounting intermediate cam scraper squeezes in decollation bolt shown in Fig. 1, the demounting procedure remaining in the decollation bolt in the screw of equipment is as follows:
A, formation inner via hole of holing vertically at the center residuing in the broken bolt in screw, the diameter of inner via hole is less than the thread root diameter of broken bolt;
B, prepare a triangular scraper, the blade external diameter of this triangular scraper is greater than the diameter of inner via hole and is less than the thread root diameter of broken bolt, the front end shape of blade tapers to point of a knife, the end of blade is integrated handle of a knife with blade, handle of a knife is square cylinder, the outer surface of handle of a knife is provided with anti-slip veins, the point of a knife of triangular scraper is stretched into inner via hole, the blade of triangular scraper is squeezed into broken bolt along the axis of inner via hole, the blade of triangular scraper is embedded in broken bolt, and shank portion is then positioned at outside screw;
The handle of a knife of C, use spanner clamping triangular scraper, spanner is pulled by the back-out direction of broken bolt, spanner is pulled in the process of triangular scraper and is driven broken bolt to rotate towards the direction screwing out screw, until decollation bolt screws out screw completely, namely completes the dismounting of decollation bolt.
Claims (3)
1. a decollation bolt method for dismounting, is characterized in that comprising the following steps:
A, formation inner via hole of holing vertically at the center residuing in the broken bolt in screw, the diameter of described inner via hole is less than the thread root diameter of described broken bolt;
B, the point of a knife of a triangular scraper is stretched into described inner via hole, the blade of described triangular scraper is squeezed into described broken bolt along the axis of described inner via hole, make the blade of described triangular scraper embed in described broken bolt, the blade external diameter of described triangular scraper is greater than the diameter of described inner via hole and is less than the thread root diameter of described broken bolt;
The handle of a knife of triangular scraper described in C, use spanner clamping, pull spanner by the back-out direction of described broken bolt, spanner is pulled in the process of described triangular scraper and is driven described broken bolt to screw out described screw.
2. decollation bolt method for dismounting according to claim 1, is characterized in that: the handle of a knife of described triangular scraper is square cylinder integrated with the blade of described triangular scraper.
3. decollation bolt method for dismounting according to claim 1 and 2, is characterized in that: the handle of a knife outer surface of described triangular scraper is provided with anti-slip veins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588595.2A CN104646917A (en) | 2013-11-21 | 2013-11-21 | Method for dismounting decollation bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588595.2A CN104646917A (en) | 2013-11-21 | 2013-11-21 | Method for dismounting decollation bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104646917A true CN104646917A (en) | 2015-05-27 |
Family
ID=53238830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310588595.2A Pending CN104646917A (en) | 2013-11-21 | 2013-11-21 | Method for dismounting decollation bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104646917A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717006A (en) * | 2016-08-12 | 2018-02-23 | 南京德朔实业有限公司 | Groover and its guide pin bushing and auxiliary member |
| 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 |
| CN111545990A (en) * | 2019-02-11 | 2020-08-18 | 中国航发商用航空发动机有限责任公司 | Method for taking out broken interference stud in casing |
| CN112872780A (en) * | 2021-01-14 | 2021-06-01 | 中广核工程有限公司 | Nuclear power plant's radials surrounding subassembly bolt demolishs device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206611U (en) * | 1986-12-22 | 1987-10-28 | 蒋克青 | Bolt-withdrawing device |
| CN1520965A (en) * | 2003-02-13 | 2004-08-18 | 阿尔斯托姆科技有限公司 | Dismantling tool for removing helical threaded joints and its application |
| CN102380849A (en) * | 2011-11-16 | 2012-03-21 | 杨锋刚 | Broken nail removing device |
| CN202292661U (en) * | 2011-08-18 | 2012-07-04 | 杭州杭刃工具有限公司 | Square screw extractor |
| CN102990606A (en) * | 2012-10-08 | 2013-03-27 | 镇江市华普电子设备有限公司 | Screw extractor |
-
2013
- 2013-11-21 CN CN201310588595.2A patent/CN104646917A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206611U (en) * | 1986-12-22 | 1987-10-28 | 蒋克青 | Bolt-withdrawing device |
| CN1520965A (en) * | 2003-02-13 | 2004-08-18 | 阿尔斯托姆科技有限公司 | Dismantling tool for removing helical threaded joints and its application |
| CN202292661U (en) * | 2011-08-18 | 2012-07-04 | 杭州杭刃工具有限公司 | Square screw extractor |
| CN102380849A (en) * | 2011-11-16 | 2012-03-21 | 杨锋刚 | Broken nail removing device |
| CN102990606A (en) * | 2012-10-08 | 2013-03-27 | 镇江市华普电子设备有限公司 | Screw extractor |
Non-Patent Citations (1)
| Title |
|---|
| 金永成: "巧取断螺栓", 《机械制造》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717006A (en) * | 2016-08-12 | 2018-02-23 | 南京德朔实业有限公司 | Groover and its guide pin bushing and auxiliary member |
| CN107717006B (en) * | 2016-08-12 | 2019-11-22 | 南京德朔实业有限公司 | Groover and its guide sleeve and auxiliary member |
| 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 |
| CN111545990A (en) * | 2019-02-11 | 2020-08-18 | 中国航发商用航空发动机有限责任公司 | Method for taking out broken interference stud in casing |
| CN111545990B (en) * | 2019-02-11 | 2021-06-22 | 中国航发商用航空发动机有限责任公司 | Method for taking out broken interference stud in casing |
| CN112872780A (en) * | 2021-01-14 | 2021-06-01 | 中广核工程有限公司 | Nuclear power plant's radials surrounding subassembly bolt demolishs device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |