CN202037588U - Threaded fracture end cleaning and removing hinging awl - Google Patents
Threaded fracture end cleaning and removing hinging awl Download PDFInfo
- Publication number
- CN202037588U CN202037588U CN2011201250063U CN201120125006U CN202037588U CN 202037588 U CN202037588 U CN 202037588U CN 2011201250063 U CN2011201250063 U CN 2011201250063U CN 201120125006 U CN201120125006 U CN 201120125006U CN 202037588 U CN202037588 U CN 202037588U
- Authority
- CN
- China
- Prior art keywords
- awl
- threaded
- screw thread
- broken end
- fracture end
- 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 discloses a threaded fracture end cleaning and removing hinging awl, which relates to a manual tool and provides the threaded fracture end cleaning and removing hinging awl capable of reversely unscrewing a threaded fracture end, carrying out cutting cleaning without damage to screw threads and completing the threaded fracture end cleaning work through being matched with a corresponding threaded awl. The threaded fracture end cleaning and removing hinging awl is provided with an awl body and an awl handle, wherein the awl body is provided with 3 to 6 chip accommodating grooves along the axial line, the 3 to 6 chip accommodating grooves form 3 to 6 left-handed cutting edges, the front angle gamma 0 of the left-handed cutting edges is 0 to 15 degrees, the back angle alpha 0 of the left-handed cutting edges is 5 to 20 degrees, and the tail end of the awl handle is provided with a square tenon. The threaded fracture end cleaning and removing hinging awl has the advantages that the structure is simple, the operation is convenient, the performance is reliable, the cost is low, the universality is high, and the like. The threaded fracture end in a pipeline and a machine element can be fast cleaned and removed through the simple and convenient tool, so difficult problems often generated in the maintenance work can be readily solved.
Description
Technical field
The utility model relates to a kind of hand tools, especially relates to screw thread broken end that a kind of external diameter value the equals corresponding broken end screw thread path value hinge awl of clearing up and discharging.
Background technology
Being threaded is most widely used connected mode during a kind of member connection and pipeline connect.In assembling, dismounting and the use of threaded connector, bolt or threaded tube can fracture occur because of external force effect or corrosion seriously cause in the threaded connection place.For the bolt in parts broken end, conventional method be adopt little chisel reverse knock screw out or the one section extension of burn-oning after reverse back-out.The success rate that these two kinds of methods withdraw from broken end is lower, when especially running into diameter less than the situation of the bolt broken end in the bolt of 10mm broken end or the fracture depression parts; And in pipeline connects, owing to be subjected to the influence of pumped (conveying) medium and environmental condition, so pipe-line system is higher at the probability of threaded connection place generation corrosion and fracture, the difficulty of the pipeline thread broken end work of cleaning corrosion is bigger.
Summary of the invention
The purpose of this utility model aims to provide a kind of reverse back-out of screw thread can being breaked end, and carries out the not cutting of damaged screw and clears up, and a screw thread of finishing silk work clearly under the screw tap of correspondence cooperates breaks end to clear up and discharge and cuts with scissors awl.
The utility model is provided with cone and taper shank, and described cone is provided with 3～6 chip pockets along axis, and described 3～6 chip pockets form 3～6 left-hand cut swords, the anterior angle γ of described left-hand cut sword
0Be 0 °～15 °, the relief angle α of left-hand cut sword
0It is 5 °～20 °; The end side of the being provided with tenon of described taper shank.
The external diameter of the cylindricality calibrated section of described left-hand cut sword can equal the path value of corresponding broken end screw thread, taper lead angle 2 φ of the taper cutting tip of left-hand cut sword can be 40 °～50 °, the axial length of the taper cutting tip of described left-hand cut sword can be described left-hand cut sword the cylindricality calibrated section the external diameter value 1/2nd.The length of side of described shank end side tenon can be according to the size of shank external diameter, is made as a kind of among 6.3mm, 10mm, 12.5mm, 16mm, 20mm, 25mm, 40mm, the 63mm, is convenient to dock the transmission square hole of standard socket wrench.
Can be provided with through hole on described side's tenon, the diameter of described through hole can be 3～12mm, utilizes universal handle also can transmit moment of torsion.
The utility model can adopt quality materials such as carbon tool steel, alloy tool steel, high-speed steel to make.
During use, choose the hinge awl of corresponding model according to the nominal diameter of screw thread broken end.If the gas thread broken end is then directly filled in the broken end inwall with the front end of taper cutting tip; If the bolt broken end then gets out the circular hole that a diameter is about 70% broken end screw thread nominal diameter value along the axis that breaks end earlier, and then the front end of taper cutting tip is filled in the circular hole.Under the cooperation of box spanner (or windeisen or general utility wrench), push forward and be rotated counterclockwise.When the cutting moment of hinge awl during greater than the moment of friction of internal and external threads, the screw thread broken end can left-handed withdrawing from; When hinge awl can't drive broken end when left-handed, the hinge awl does not then destroy the cutting cleaning of screw thread, and then finishes silk work clearly under the cooperation of corresponding screw tap.
The utility model can form one group of series of products corresponding with screw thread commonly used, also can form the comprehensive group of cover that the screw thread of clearing up and discharging breaks end with the corresponding tool that revolves.
The utlity model has advantages such as simple in structure, easy to operate, dependable performance, with low cost and highly versatile, this easy instrument screw thread broken end in pipeline and the parts of clearing up and discharging fast is readily solved the thorny problem that often runs in the maintenance work.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A-A profile at cylindricality calibrated section place among Fig. 1.
The specific embodiment
Following examples will the utility model is described in further detail in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the utility model embodiment is provided with cone and taper shank 3, and described cone is provided with 3～6 chip pockets 1 along axis, and described 3～6 chip pockets 1 form 3～6 left-hand cut swords 2, the anterior angle γ of described left-hand cut sword 2
0Be 0 °～15 ° (being preferably 5 °), the relief angle α of left-hand cut sword 2
0Be 5 °～20 ° (being preferably 10 °); The end side of the being provided with tenon 31 and the through hole 32 of described taper shank 3 are convenient to transmit moment of torsion.
The outside diameter d of the cylindricality calibrated section 22 of described left-hand cut sword 2 equals the path value of corresponding broken end screw thread, taper lead angle 2 φ of the taper cutting tip 21 of left-hand cut sword 2 are 40 °～50 ° (being preferably 45 °), the axial length L of the taper cutting tip of described left-hand cut sword can be described left-hand cut sword cylindricality calibrated section 22 outside diameter d about 1/2nd.The length of side of described shank end side tenon 31 can be according to the size of shank external diameter, is made as a kind of among 6.3mm, 10mm, 12.5mm, 16mm, 20mm, 25mm, 40mm, the 63mm, is convenient to dock the transmission square hole of standard socket wrench.Can be provided with through hole on described side's tenon, the diameter of described through hole can be 3～12mm, utilizes universal handle also can transmit moment of torsion.As if the gas thread broken end that with the nominal diameter of clearing up and discharging is 1/2 inch (φ 20.955) is example, the outside diameter d of its corresponding hinge awl cylindricality calibrated section 22 is 17.83mm, and the axial length L of cone cutting tip 21 gets 9mm, and the length of side of square tenon 31 is got 12.5mm, the diameter of through hole 32 is got 6mm, and all the other indexs are identical.
The utility model adopts quality materials such as carbon tool steel, alloy tool steel, high-speed steel.
Claims (7)
1. the screw thread broken end is cleared up and discharged and is cut with scissors awl, it is characterized in that being provided with cone and taper shank, and described cone is provided with 3～6 chip pockets along axis, and described 3～6 chip pockets form 3～6 left-hand cut swords, the anterior angle γ of described left-hand cut sword
0Be 0 °～15 °, the relief angle α of left-hand cut sword
0It is 5 °～20 °; The end side of the being provided with tenon of described taper shank.
2. screw thread broken end as claimed in claim 1 is cleared up and discharged and is cut with scissors awl, it is characterized in that the external diameter of the cylindricality calibrated section of described left-hand cut sword equals the path value of corresponding broken end screw thread.
3. screw thread broken end as claimed in claim 1 is cleared up and discharged and is cut with scissors awl, and taper lead angle 2 φ that it is characterized in that the taper cutting tip of described left-hand cut sword are 40 °～50 °.
4. as claim 1 or the 3 described screw threads broken end hinge awl of clearing up and discharging, the axial length that it is characterized in that the taper cutting tip of described left-hand cut sword be described left-hand cut sword the cylindricality calibrated section the external diameter value 1/2nd.
5. the screw thread as claimed in claim 1 broken end hinge awl of clearing up and discharging, the length of side that it is characterized in that described shank end side tenon are a kind of among 6.3mm, 10mm, 12.5mm, 16mm, 20mm, 25mm, 40mm, the 63mm.
6. screw thread broken end as claimed in claim 1 is cleared up and discharged and is cut with scissors awl, it is characterized in that described side's tenon is provided with through hole.
7. screw thread broken end as claimed in claim 6 is cleared up and discharged and is cut with scissors awl, and the diameter that it is characterized in that described through hole is 3～12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201250063U CN202037588U (en) | 2011-04-25 | 2011-04-25 | Threaded fracture end cleaning and removing hinging awl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201250063U CN202037588U (en) | 2011-04-25 | 2011-04-25 | Threaded fracture end cleaning and removing hinging awl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202037588U true CN202037588U (en) | 2011-11-16 |
Family
ID=44965053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201250063U Expired - Fee Related CN202037588U (en) | 2011-04-25 | 2011-04-25 | Threaded fracture end cleaning and removing hinging awl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202037588U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802130A (en) * | 2015-05-11 | 2015-07-29 | 中国人民解放军军械工程学院 | Ammunition compression ring rotary cutting detaching tool |
| CN104802129A (en) * | 2015-05-11 | 2015-07-29 | 中国人民解放军军械工程学院 | Rotary cutting detaching method for cartridge pressing ring |
| CN112638588A (en) * | 2018-08-21 | 2021-04-09 | 加固控股有限责任公司 | Fastener take-out device |
-
2011
- 2011-04-25 CN CN2011201250063U patent/CN202037588U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802130A (en) * | 2015-05-11 | 2015-07-29 | 中国人民解放军军械工程学院 | Ammunition compression ring rotary cutting detaching tool |
| CN104802129A (en) * | 2015-05-11 | 2015-07-29 | 中国人民解放军军械工程学院 | Rotary cutting detaching method for cartridge pressing ring |
| CN112638588A (en) * | 2018-08-21 | 2021-04-09 | 加固控股有限责任公司 | Fastener take-out device |
| CN112638588B (en) * | 2018-08-21 | 2022-07-08 | 加固控股有限责任公司 | Fastener take-out device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20130425 |