CN206738359U - A kind of double end tooth stud - Google Patents
A kind of double end tooth stud Download PDFInfo
- Publication number
- CN206738359U CN206738359U CN201720464340.9U CN201720464340U CN206738359U CN 206738359 U CN206738359 U CN 206738359U CN 201720464340 U CN201720464340 U CN 201720464340U CN 206738359 U CN206738359 U CN 206738359U
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- China
- Prior art keywords
- thread segment
- tooth
- spiro column
- angle
- vertical line
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Abstract
The utility model discloses a kind of double end tooth stud.It includes spiro column, thread segment, and the thread segment includes the first thread segment, the second thread segment, and the spiro column is between first thread segment and the second thread segment；Angle between the tooth of first thread segment initial end one and screw body vertical line is 20 °, the angle between the tooth of least significant end one and screw body vertical line is 20 °, and the angle between the tooth of the second thread segment initial end one and screw body vertical line is 20 °, the angle between the tooth of least significant end one and screw body vertical line is 20 °；First thread segment drift is to last tooth and the second thread segment drift to last tooth；The a length of 180mm of first thread segment tooth and the first thread segment both ends tooth are away from being 10mm, a length of 140mm of the second thread segment tooth and the second thread segment both ends tooth away from for 10mm；Major Diam is 59.92~59.65mm, and spiro column is cylinder.Preferable with concentricity, finish is preferable, carrot-free advantage.
Description
Technical field
Fastener areas is the utility model is related to, more specifically it is a kind of double end tooth stud.
Background technology
Double end tooth stud refers to the threaded cylindrical fastener in both ends, is widely used in electric power, chemical industry, oil refining, valve
Door, railway, bridge, steel structure, vapour rub accessory, machinery, boiler steel structure, tower crane, large-span steel and heavy construction etc.；Mainly
For main body be large scale equipment, it is necessary to install annex, such as visor, mechanical sealing base, deceleration frame etc. need to use double end spiral shell
Bolt, stud one end is screwed into main body, install annex after other end band top nut, because annex is often dismantled, directly
During using bolt-connection main body and annex, main body thread can wear or damage in the course of time, and use the stud meeting of replacing non-
It is often convenient；It is very big to connect body thickness, when bolt length is very long, stud need to be used, in real work, external applied load, which has, shakes
Dynamic, change, material at high temperature creep etc. can cause frictional force to reduce, and normal pressure is in a certain pop-off, frictional force in screw thread pair
Zero so that thread connection loosen, such as will relax and fail through repeated action, thread connection, therefore, it is necessary to carry out it is locking,
Otherwise normal work can be influenceed, is caused the accident, there is locking purpose using stud connection.
An only German plant produced similar products at present, there is provided similar products are to China, according to Chinese customs statistics
Data are shown：The price of Chinese import high-intensity fasteners is six times of estimations of Chinese exports price, when Germany arrives Chinese logistics
Between about 40-60 days or so, seriously constrain Chinese Enterprise JIT production planning assembling,；Existing domestic double end tooth stud screw thread
Section matching degree is not high, and thread segment and spiro column concentricity are poor, and thread segment is not high with spiro column matching degree, thread segment and spiro column
Finish (surface roughness) is poor, and tooth line is also easy to produce burr, the impact of double end tooth stud product normal temperature with thin bar chamfering joint portion
50- can only be accomplished by absorbing work((product resists the toughness that external force and environment temperature reached and the maximum of fatigue resistance in itself)
80J, current Chinese motor-car manufacturer, mining machinery and rock tunnel(ling) machine enterprise are 100~120J's to normal temperature impact absorbing energy
Double end tooth stud demand is huge.
The content of the invention
The purpose of this utility model is to provide a kind of double end tooth stud, cost-effective, reduces the product stream cycle, thread segment
Matching degree is higher, and thread segment and spiro column concentricity are preferable, and finish is preferable, tooth line and spiro column chamfering joint portion impulse- free robustness and
Drift is on earth (last tooth of thin bar).
To achieve these goals, the technical solution of the utility model is：A kind of double end tooth stud, it is characterised in that：Bag
Spiro column, thread segment are included, the thread segment includes the first thread segment, the second thread segment, and the spiro column is located at first spiral shell
Between line section and the second thread segment；Angle between the tooth of first thread segment initial end one and screw body vertical line is 20 °, least significant end one
Angle between tooth and screw body line is 20 °, the angle between the tooth of the second thread segment initial end one and screw body vertical line is 20 °,
Angle between the tooth of least significant end one and screw body vertical line is 20 °；First thread segment drift to last tooth and the second thread segment leads to
Advise to last tooth；The a length of 180mm of first thread segment tooth and the first thread segment both ends tooth are away from for 10mm, the second thread segment tooth length
It is 140mm and the second thread segment both ends tooth away from for 10mm；Major Diam is 59.92~59.65mm, and spiro column is cylindrical, spiral shell
Column diameter is 54 ± 0.1mm, and spiro column finish is 1.6 μm；The total length of spiro column and thread segment is 470 ± 0.8mm；The
The concentricity of one thread segment and spiro column is 0.2mm, and the concentricity of the second thread segment and spiro column is 0.2mm.
A kind of double end tooth stud described in the utility model is M60*470 double end tooth studs.
The utility model has the following advantages that：
(1) foreign technology monopolization (an only German plant produced similar products at present, there is provided to China) is thoroughly broken；
It is cost-effective (to be shown according to Chinese customs's statistics：The price of Chinese import high-intensity fasteners is Chinese exports price
Six times of estimations, actually every expense is about 350-450 first (prices of raw materials fluctuating factor) left and right to the utility model)；Reduce production
The product logistics cycle, (Germany arrived about 40-60 days or so Chinese logistics time at present, seriously constrains the punctual metaplasia of Chinese Enterprise
Production assembling)；
(2) tooth line and thin bar chamfering joint portion impulse- free robustness and drift is on earth (last tooth of thin bar)；The impact of product normal temperature is inhaled
Receive work((product resists the toughness that external force and environment temperature reached and the maximum of fatigue resistance in itself) and reach 100-120J
(current domestic similar products can only accomplish 50-80J)；Product glossiness 1.6-6.3 μ are reached using turning and sandblasting technique for grinding
M, sandblasting technique for grinding used time only two hours or so, substantially reduces the polishing time；Thread segment matching degree is higher, thread segment with
Spiro column concentricity is preferable, finish is preferable, tooth line and spiro column chamfering joint portion impulse- free robustness and drift on earth (thin bar last
Tooth).
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
1- spiro columns in figure, 2- thread segments, the thread segments of 3- first, the thread segments of 4- second.
Embodiment
Describe performance of the present utility model in detail below in conjunction with the accompanying drawings, but they are not formed to of the present utility model
Limit, it is only for example.The advantages of making the utility model by explanation simultaneously, is more clear and is readily appreciated that.
Understood refering to accompanying drawing：A kind of double end tooth stud, it is characterised in that：Including spiro column 1, thread segment 2, the thread segment
2 include the first thread segment 3, the second thread segment 4, and the spiro column 1 is between the thread segment 4 of the first thread segment 3 and second；
Angle between the tooth of first thread segment, 3 initial end one and the vertical line of screw body 1 is 20 °, between the tooth of least significant end one and the vertical line of screw body 1
Angle be 20 °, the angle between the tooth of 4 initial end of the second thread segment one and the vertical line of screw body 1 is 20 °, the tooth of least significant end one and spiral shell
Angle between the vertical line of the body of rod 1 is 20 °；The drift of first thread segment 3 to last tooth and the drift of the second thread segment 4 to last
Tooth；The a length of 180mm of the tooth of first thread segment 3 and the both ends tooth of the first thread segment 3 away from for 10mm, a length of 140mm of the tooth of the second thread segment 4,
And the both ends tooth of the second thread segment 4 is away from for 10mm；Major Diam is 59.92~59.65mm, and spiro column 1 is cylindrical, spiro column 1
A diameter of 54 ± 0.1mm, the finish of spiro column 1 are 1.6 μm；The total length of spiro column 1 and thread segment 2 is 470 ± 0.8mm；The
The concentricity of one thread segment 3 and spiro column 1 is 0.2mm, and the concentricity of the second thread segment 4 and spiro column 1 is 0.2mm.
Other unaccounted parts belong to prior art.
Claims (1)
- A kind of 1. double end tooth stud, it is characterised in that：Including spiro column (1), thread segment (2), the thread segment (2) includes first Thread segment (3), the second thread segment (4), the spiro column (1) be located at first thread segment (3) and the second thread segment (4) it Between；Angle between the tooth of first thread segment (3) initial end one and spiro column (1) vertical line is 20 °, the tooth of least significant end one and spiro column (1) angle between vertical line is 20 °, the angle between the tooth of the second thread segment (4) initial end one and spiro column (1) vertical line is 20 °, Angle between the tooth of least significant end one and spiro column (1) vertical line is 20 °；First thread segment (3) drift is to last tooth and the second spiral shell Line section (4) drift is to last tooth；The a length of 180mm of first thread segment (3) tooth and the first thread segment (3) both ends tooth away from for 10mm, The a length of 140mm of second thread segment (4) tooth and the second thread segment (4) both ends tooth are away from for 10mm；Major Diam be 59.92~ 59.65mm, spiro column (1) are cylinder, and spiro column (1) a diameter of 54 ± 0.1mm, spiro column (1) finish is 1.6 μm；Spiral shell The total length of cylinder (1) and thread segment (2) is 470 ± 0.8mm；The concentricity of first thread segment (3) and spiro column (1) is 0.2mm, the concentricity of the second thread segment (4) and spiro column (1) is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720464340.9U CN206738359U (en) | 2017-04-28 | 2017-04-28 | A kind of double end tooth stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720464340.9U CN206738359U (en) | 2017-04-28 | 2017-04-28 | A kind of double end tooth stud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738359U true CN206738359U (en) | 2017-12-12 |
Family
ID=60563129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720464340.9U Active CN206738359U (en) | 2017-04-28 | 2017-04-28 | A kind of double end tooth stud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738359U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681506A (en) * | 2018-12-27 | 2019-04-26 | 上海群力紧固件制造有限公司 | A kind of double end tooth stud and its preparation process |
| CN117020570A (en) * | 2023-04-28 | 2023-11-10 | 定西高强度紧固件股份有限公司 | Technological method for improving low-temperature impact and fatigue resistance performance of wind turbine blade stud |
-
2017
- 2017-04-28 CN CN201720464340.9U patent/CN206738359U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681506A (en) * | 2018-12-27 | 2019-04-26 | 上海群力紧固件制造有限公司 | A kind of double end tooth stud and its preparation process |
| CN117020570A (en) * | 2023-04-28 | 2023-11-10 | 定西高强度紧固件股份有限公司 | Technological method for improving low-temperature impact and fatigue resistance performance of wind turbine blade stud |
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