CN107649837A - A kind of processing method of wind-powered electricity generation ground anchor bolt - Google Patents
A kind of processing method of wind-powered electricity generation ground anchor bolt Download PDFInfo
- Publication number
- CN107649837A CN107649837A CN201710887237.XA CN201710887237A CN107649837A CN 107649837 A CN107649837 A CN 107649837A CN 201710887237 A CN201710887237 A CN 201710887237A CN 107649837 A CN107649837 A CN 107649837A
- Authority
- CN
- China
- Prior art keywords
- wind
- steel bar
- electricity generation
- powered electricity
- ground anchor
- 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
- 230000005611 electricity Effects 0.000 title claims abstract description 19
- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000010791 quenching Methods 0.000 claims abstract description 12
- 230000000171 quenching effect Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000005496 tempering Methods 0.000 claims abstract description 5
- 239000003755 preservative agent Substances 0.000 claims abstract description 4
- 230000002335 preservative effect Effects 0.000 claims abstract description 4
- 238000002791 soaking Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000008646 thermal stress Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241000316770 Deschampsia cespitosa var. alpina Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002699 waste material Substances 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- F16B33/00—Features common to bolt and nut
-
- 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
- F16B33/00—Features common to bolt and nut
- F16B33/008—Corrosion preventing means
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of processing method of wind-powered electricity generation ground anchor bolt.Step is as follows：A. the heat treatment quenching and tempering by technical requirements is carried out to alloy steel bar；B. the both ends of the alloy steel bar by size requirement after heat treatment prepare screw thread；C. preservative treatment is carried out to threaded alloy steel bar；D. the corresponding nut and pad worn on demand is assembled, obtains required wind-powered electricity generation ground anchor bolt (1).Present invention, avoiding that caused may deform in mechanical processing process and reduce the thermal stress in bar, the service life of bolt is improved, the further protection measure finally also taken to bolt.
Description
Technical field：
The present invention relates to the processing method of metal parts a kind of, in particular to a kind of it is used in wind-force electrical machinery install and use
The processing method of bolt.
Background technology：
With a large amount of uses of clean energy resource, the installed capacity of wind-driven generator is quickly grown, the volume of wind-driven generator
Huge, installation accuracy requires very high, because the weight (containing more blades) of wind-driven generator is huge, therefore needs substantial amounts of high intensity
Bolt by wind-driven generator be arranged on basis on, and wind-driven generator be arranged on very high position, it is necessary to as early as possible by wind-force
Generator is installed in place, and this requires bolt not only to be also needed to high intensity with high accuracy, so as to when as few as possible
It is interior to be installed in place substantial amounts of bolt.The current production process of wind-powered electricity generation ground anchor bolt of prior art and the production of conventional stud
Process does not have essential distinction, and at both ends, routinely prepared by mechanical processing toolses after usually first metal bar is cut to size
Go out screw thread, to increase the intensity of bolt, then screwed bar be thermally treated resulting in the bolt of higher-strength, finally matched somebody with somebody
Upper corresponding nut and pad turn into finished product wind-powered electricity generation ground anchor bolt.Wind-powered electricity generation ground anchor bolt prepared by above-mentioned prior art due to heat at
High temperature and subsequent corresponding technique during reason, make threaded bolt body to produce certain deformation and the damage to screw thread,
When the precise decreasing of bolt is caused to install wind-driven generator, increase the set-up time, or even interim replacing does not conform to the bolt of precision,
Cause to waste, key can also influence the intensity heterogeneity of a large amount of bolts and the time of installation wind-driven generator, high-altitude is significantly increased
The significantly extension of activity duration, which not only results in cost increase, can also bring work high above the ground the probability of peril occur.Existing skill
The method that art solves above-mentioned precision problem is on the other hand to increase bolt body in the temperature for reducing heat treatment with Reducing distortion
Diameter made up heat treatment caused by intensity reduction, summarys be wind-powered electricity generation ground anchor bolt cost increase and quality is also certain
Decline.Therefore, how to solve the problems, such as that the high intensity, high accuracy and low cost of wind-powered electricity generation ground anchor bolt are significant.
The content of the invention：
The goal of the invention of the present invention is disclose a kind of have high intensity, high-precision and inexpensive be used for wind-force electrical machinery earth anchor
Bolt preparation method.
Realizing the preparation process of the wind-powered electricity generation ground anchor bolt of the present invention is：
A. the heat treatment quenching and tempering by technical requirements is carried out to alloy steel bar；
B. the both ends of the alloy steel bar by size requirement after heat treatment prepare screw thread；
C. preservative treatment is carried out to threaded alloy steel bar；
D. the corresponding nut and pad worn on demand is assembled, obtains required wind-powered electricity generation ground anchor bolt 1.
Heat treatment process also has in described step a：
A1. at least three sections heating are first passed around and reach the maximum temperature of the quenching of the alloy steel bar, each section adds
The time of heat shown for temperature control instrument reach needed for after temperature, then be persistently incubated 30~35 minutes；Or total soaking time is
More than 2.6~2.7 numerical value is multiplied by the mm numbers of alloy steel bar diameter, the unit of the numerical value is minute；
A2. after alloy steel bar quenches in quenching liquid body, temperature is 580~620 DEG C, and soaking time is 280
~320 minutes.
Alloy steel bar after described heat treatment carries out screw thread using size of the screw-rolling machine at the both ends of bar on request
Extruding, obtains screwed bolt.
The center section of described bolt is arranged pvc pipe, and the both ends screw-thread ending part of bolt is arranged heat-shrinkable tube, or
Threaded portion puts catch net.
The technical solution of the present invention has made significant improvement to the step of preparation process of prior art, is to alloy first
Steel Bar carries out high-temperature heat treatment, followed by the machining under normal temperature, avoids the precision of bolt existing for prior art
The defects of not high and presence deformation, the second is paying special attention to and disclosing the important sport technique segment in heat treatment, with retention bar
The homogeneity and toughness of material, so further avoid in mechanical processing process and caused may deform and reduce in bar
Thermal stress, improve the service life of bolt, the further protection measure finally also taken to bolt.
Brief description of the drawings：
Fig. 1 is the structure sectional view of wind-powered electricity generation ground anchor bolt prepared by the present invention.
Fig. 2 is the enlarged diagram of the part A in Fig. 1.
Fig. 3 is the enlarged diagram of the part B in Fig. 1.
Embodiment：
The embodiment of the present invention is provided with reference to accompanying drawing, it is necessary to which the detailed description to embodiment of explanation is
For ease of the understanding of the technical spirit to the present invention, the limitation of the scope of the claims to the present invention is not construed as.
Fig. 1~Fig. 3 is referred to, the technical scheme of specific embodiment of the invention is：A. alloy steel bar is carried out by skill
The heat treatment quenching and tempering of art requirement；B. the both ends of the alloy steel bar by size requirement after heat treatment prepare screw thread；C. to band
The alloy steel bar of screw thread carries out preservative treatment；D. the corresponding nut and pad worn on demand is assembled, obtains required wind
Electric ground anchor bolt 1.
In above-mentioned preparation method, step a is to make alloy steel bar after heat treatment quenching and tempering, makes the surrender of bar
It is significantly improved than, toughness and plasticity, the crystal grain of its steel alloy is further refined, and also needs to have whole bar
Extraordinary homogeneity.
The performance for realizing foregoing alloy steel bar requirement preferably, heat treatment process also has in described step a：a1.
First pass around at least three sections heating and reach the maximum temperature of the quenching of the alloy steel bar, the time of each section of heating is temperature
Control instrument show reach needed for after temperature, then be persistently incubated 30~35 minutes；Or total soaking time is in alloy steel bar
The mm numbers of diameter are multiplied by more than 2.6~2.7 numerical value, and the unit of the numerical value is minute；A2. alloy steel bar is in quenching liquid body
After quenching, temperature is 580~620 DEG C, and soaking time is 280~320 minutes.
Remaining heat treatment requirements only need to be according to the material of bar, and other technical requirements routinely, described quenches
The maximum temperature of fire is known according to the material of steel alloy, and bar is enough by the crystal grain of the obtained bars of above-mentioned step a1
It is small, the toughness of bar is on the one hand improved, and internal modification difference is small, stress concentration is small, is not likely to produce micro-crack, to improving
Intensity and machinability are very beneficial, and step a2 is most important to the homogeneity for improving bar, particularly wind-powered electricity generation ground anchor bolt
It is relatively large in diameter, homogeneity is bad to produce quality defect in preparation.
The alloy steel bar after above-mentioned heat treatment is prepared, is entered using size of the screw-rolling machine at the both ends of bar on request
Row screw thread extrudes；The distinguishing character for the bar that exactly above-mentioned heat treatment is brought, screw thread is prepared with screw-rolling machine extruding, not only precision is high
And the destruction to bar internal crystal framework will not be produced, there is unique technique effect.In above-mentioned step c and step d technology
Hold does not have substantial difference with prior art, is not described in detail.
Due to above-mentioned steps prepare wind-powered electricity generation ground anchor bolt body and both ends screw thread transport and using process easily by
Damage, inconvenience, replacing when can cause that wind-driven generator is installed, therefore the center section of bolt 1 is arranged pvc pipe 2, and bolt 1 is entered
One step is protected, and heat-shrinkable tube 3 is arranged in the both ends screw-thread ending part of bolt 1, provides appropriate section further protection, or
The catch net (not shown) on threaded portion set, to avoid the damage to screw thread, other positions in Fig. 1~3 are hassock
Piece 4, hex nut 5 and shim liner 6.
Claims (4)
1. a kind of processing method of wind-powered electricity generation ground anchor bolt, it is characterised in that as follows the step of processing method：
A. the heat treatment quenching and tempering by technical requirements is carried out to alloy steel bar；
B. the both ends of the alloy steel bar by size requirement after heat treatment prepare screw thread；
C. preservative treatment is carried out to threaded alloy steel bar；
D. the corresponding nut and pad worn on demand is assembled, obtains required wind-powered electricity generation ground anchor bolt (1).
2. the processing method of wind-powered electricity generation ground anchor bolt according to claim 1, it is characterised in that be heat-treated in described step a
Process also has：
A1. first pass around at least three sections heating and reach the maximum temperature of the quenching of the alloy steel bar, each section heating
Time be temperature control instrument show reach needed for after temperature, then be persistently incubated 30~35 minutes；Or total soaking time is to close
The mm numbers of golden Steel Bar diameter are multiplied by more than 2.6~2.7 numerical value, and the unit of the numerical value is minute；
A2. after alloy steel bar quenches in quenching liquid body, temperature is 580~620 DEG C, and soaking time is 280~320
Minute.
3. the processing method of wind-powered electricity generation ground anchor bolt according to claim 2, it is characterised in that the conjunction after described heat treatment
Golden Steel Bar carries out screw thread extruding using size of the screw-rolling machine at the both ends of bar on request, obtains screwed bolt (1).
4. the processing method of wind-powered electricity generation ground anchor bolt according to claim 3, it is characterised in that the centre of described bolt (1)
Part is arranged pvc pipe (2), and the both ends screw-thread ending part of bolt (1) is arranged heat-shrinkable tube (3), or is protected on threaded portion set
Protecting wire net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887237.XA CN107649837A (en) | 2017-09-25 | 2017-09-25 | A kind of processing method of wind-powered electricity generation ground anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887237.XA CN107649837A (en) | 2017-09-25 | 2017-09-25 | A kind of processing method of wind-powered electricity generation ground anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107649837A true CN107649837A (en) | 2018-02-02 |
Family
ID=61116808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710887237.XA Pending CN107649837A (en) | 2017-09-25 | 2017-09-25 | A kind of processing method of wind-powered electricity generation ground anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107649837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967982A (en) * | 2019-04-28 | 2019-07-05 | 中船重工海为郑州高科技有限公司 | A kind of preparation method of wind power generating set circular thread anchor component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235223A (en) * | 1988-07-25 | 1990-02-05 | Nippon Seiko Kk | Universal joint and manufacture of fork therefor |
| CN101033769A (en) * | 2007-04-12 | 2007-09-12 | 上海天宝紧固件制造有限公司 | Special-shaped anti-removing nut and manufacture method thereof |
| CN101905405B (en) * | 2010-07-16 | 2012-09-05 | 国核宝钛锆业股份公司 | Welding mould and method for processing high-accuracy square zirconium alloy element box |
| CN103173600A (en) * | 2013-03-05 | 2013-06-26 | 郑州水野大一热处理技术有限公司 | M56*3 high-strength bolt production method |
-
2017
- 2017-09-25 CN CN201710887237.XA patent/CN107649837A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235223A (en) * | 1988-07-25 | 1990-02-05 | Nippon Seiko Kk | Universal joint and manufacture of fork therefor |
| CN101033769A (en) * | 2007-04-12 | 2007-09-12 | 上海天宝紧固件制造有限公司 | Special-shaped anti-removing nut and manufacture method thereof |
| CN101905405B (en) * | 2010-07-16 | 2012-09-05 | 国核宝钛锆业股份公司 | Welding mould and method for processing high-accuracy square zirconium alloy element box |
| CN103173600A (en) * | 2013-03-05 | 2013-06-26 | 郑州水野大一热处理技术有限公司 | M56*3 high-strength bolt production method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967982A (en) * | 2019-04-28 | 2019-07-05 | 中船重工海为郑州高科技有限公司 | A kind of preparation method of wind power generating set circular thread anchor component |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20180202 |