CN208040878U - Powder zincizing preservative treatment auxiliary connection - Google Patents
Powder zincizing preservative treatment auxiliary connection Download PDFInfo
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- CN208040878U CN208040878U CN201721657385.4U CN201721657385U CN208040878U CN 208040878 U CN208040878 U CN 208040878U CN 201721657385 U CN201721657385 U CN 201721657385U CN 208040878 U CN208040878 U CN 208040878U
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- CN
- China
- Prior art keywords
- coating
- washer
- powder zincizing
- bolt
- auxiliary connection
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The utility model provides a kind of powder zincizing preservative treatment auxiliary connection, including a bolt and a nut, the bolt includes head and screw rod, the head is located at one end of the screw rod, the nut thread is connected to the other end of the screw rod, the surface of the bolt and the nut is covered with coating, and the coating uses powder zincizing coating.The utility model is by bolt, nuts and washers external coating powder zincizing coating, breaching the limit of 1000 hours or so auxiliary connection anti-corrosion time, neutral salt spray test >=2000 hour；The requirement that torque coefficient standard deviation is no more than 0.01 is met simultaneously, is facilitated using calibrated wrench method installation.The especially threaded portion of bolts and nuts, after the processing of powder zincizing coating antiseptic, during installation is front and back and use its it is more difficult fall off, antiseptic property greatly improves.
Description
Technical field
The utility model is related to a kind of powder zincizing preservative treatment auxiliary connections.
Background technology
Current wind field is gradually to coastal and marine expansion, and coastal and marine environment is moister, salinity is also bigger,
Therefore wind turbine accessory requirement for anticorrosion accordingly also improves.The anti-corrosion coating being widely used on auxiliary connection at present has galvanizing and reaches
Crow.Galvanizing anti-corrosion ability is strong, and firmness is also relatively good, but its rough surface, and torque coefficient is unstable, can only generally adopt
The calibrated wrench method construction constructed with the big stretching method of space requirement, and space requirement can not be used small.And Dacroment is a kind of comparison
Fragile coating, has slight colliding with to will produce and falls off, especially not applicable marine time-sharing environment with high salt.Therefore, sea is used
High-strengt h joint, surface anticorrosion processing, it is necessary to reach high anti-corrosive properties, high anti-colliding with property, while there is stable torque
Coefficient.
Utility model content
The technical problems to be solved in the utility model is to overcome prior art auxiliary connection cannot be with stable torsion
The defect with higher anti-corrosion and the anti-coating that collides with, provides a kind of powder zincizing preservative treatment auxiliary connection while moment coefficient.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of powder zincizing preservative treatment auxiliary connection, including a bolt and a nut, the bolt include head and screw rod,
The head is located at one end of the screw rod, and the nut thread is connected to the other end of the screw rod, the bolt and described
The surface of nut is covered with coating, and the coating uses powder zincizing coating.
Preferably, the coating covers the entire outer surface in the bolt and the nut.
Preferably, the powder zincizing preservative treatment auxiliary connection further includes washer, the washer is sheathed on the screw rod,
The outer surface of the washer is covered with coating, and the coating being arranged on the washer uses powder zincizing coating.
Preferably, the coating is covered in the entire outer surface of the washer.
Preferably, the washer is provided with groove, the groove is radially extended along the washer.
Preferably, one end of the groove extends to the inward flange of the washer, the other end extends to the outer of the washer
Edge.
Preferably, being provided with multiple grooves on the washer, multiple grooves are in put from the center of the washer
It penetrates shape and is uniformly arranged on the washer face.
Preferably, the quantity of the washer is two, two washers are oppositely arranged, and two washers are away from each other
One end bear against in the head of the bolt and the nut.
Preferably, the thickness of the coating is 35~45 μm.
The positive effect of the utility model is：The utility model passes through in bolt, nuts and washers external coating
Powder zincizing coating breaches the limit of 1000 hours or so auxiliary connection anti-corrosion time, neutral salt spray test >=2000 hour；
The requirement that torque coefficient standard deviation is no more than 0.01 is met simultaneously, is facilitated using calibrated wrench method installation.This powder simultaneously
Last zincizing coating antiseptic processing auxiliary connection also stands colliding in transport and installation process, is applied with when installing before ensure that installation
Layer is not damaged.The especially threaded portion of bolts and nuts, after the processing of powder zincizing coating antiseptic, installation is front and back and makes
With in the process its it is more difficult fall off, antiseptic property greatly improves.By the way that groove is arranged in washer face, surface resistance is increased
Power is increased friction, is not easy to skid between washer and connected piece when being constructed using calibrated wrench method, protects the outer of connected piece
Surface.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment powder zincizing preservative treatment auxiliary connection of the utility model.
Fig. 2 is the structural schematic diagram of the washer of one embodiment powder zincizing preservative treatment auxiliary connection of the utility model.
Reference sign
Bolt 1
Head 11
Screw rod 12
Nut 2
Washer 3
Groove 31
Specific implementation mode
The utility model is further illustrated below by the mode of embodiment, but is not therefore limited in the utility model
Among the embodiment described range.
A kind of powder zincizing preservative treatment auxiliary connection, as shown in Figure 1, including a bolt 1 and a nut 2, bolt 1 includes head
Portion 11 and screw rod 12, head 11 are located at one end of screw rod 12, and nut 2 is threadedly connected to the other end of screw rod 12, bolt 1 and nut
2 surface is covered with coating, and coating uses powder zincizing coating.Coating covers the entire outer surface in bolt 1 and nut 2.It applies
The thickness of layer is 35~45 μm.
Powder zincizing preservative treatment auxiliary connection further includes washer 3, and washer 3 is sheathed on screw rod 12, and the outer surface of washer 3 is covered
Equipped with coating, the coating being arranged on washer 3 uses powder zincizing coating.Coating is covered in the entire outer surface of washer 3.
The present embodiment is by bolt, nuts and washers external coating powder zincizing coating, when breaching auxiliary connection anti-corrosion
Between 1000 hours or so limit, neutral salt spray test >=2000 hour；Simultaneously torque coefficient standard deviation is met not surpass
The requirement for crossing 0.01 facilitates using calibrated wrench method installation.This powder zincizing coating antiseptic processing auxiliary connection also passes through simultaneously
Colliding in transport and installation process is played, coating is not damaged when ensure that preceding installation and installation.Especially bolts and nuts
Threaded portion, after the processing of powder zincizing coating antiseptic, during installation is front and back and use its it is more difficult fall off, anti-corrosive properties
It can greatly improve.
Preferably, as shown in Fig. 2, washer 3 is provided with groove 31, groove 31 radially extends the present embodiment along washer 3.More
Specifically, one end of groove 31 extends to the inward flange of washer 3, and the other end extends to the outer edge of washer 3.It is highly preferred that pad
Multiple grooves 31 are provided on circle 3, multiple grooves 31 are uniformly arranged on 3 surface of washer from the center of washer 3 is radial.
The quantity of washer 3 is two, and two washers 3 are oppositely arranged, and one end for being away from each other of two washers 3 bear against in
The head 11 of bolt 1 and nut 2.
By in washer face setting groove 31, increasing skin resistance, when being constructed using calibrated wrench method, increase friction,
So that being not easy to skid between washer 3 and connected piece, the outer surface of connected piece is protected.
The manufacturing method of powder zincizing coating antiseptic processing auxiliary connection in the present embodiment is as follows：
One, the manufacturing method of bolt：Stock → molding → heat treatment → rolled thread → bolt outer surface powder zincizing coating is anti-
Corruption processing.
Two, the manufacturing method of nut：Stock → molding → heat treatment → tapping → nut outer surfaces powder zincizing coating is anti-
Corruption processing.
Three, the manufacturing method of washer：Stock → molding → heat treatment → bead outer surface powder zincizing coating antiseptic processing.
Powder zincizing dominating process route is：Alkali cleaning degreasing → ball blast → powder zincizing → cooling → dedusting → closing.Powder
The technical principle of last zincizing is：Zincizing agent and steel piece will be placed in Sherardizing furnace, and be heated to 400 DEG C or so, active zinc is former
It is sub then from outward appearance to inner essence to steel piece permeate.At the same time, iron atom is spread from inside to outside, this is just on the surface layer of steel piece
Form zinc-iron intermetallic compound, i.e. zinc coat.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of without departing substantially from the principles of the present invention and essence, many changes and modifications may be made,
But these change and modification each fall within the scope of protection of the utility model.
Claims (6)
1. a kind of powder zincizing preservative treatment auxiliary connection, including a bolt and a nut, the bolt includes head and screw rod, institute
One end that head is located at the screw rod is stated, the nut thread is connected to the other end of the screw rod, which is characterized in that the spiral shell
The surface of bolt and the nut is covered with coating, and the coating uses powder zincizing coating, the powder zincizing preservative treatment to connect
It further includes washer to connect pair, and the washer is sheathed on the screw rod, and the outer surface of the washer is covered with coating, on the washer
The coating being arranged uses powder zincizing coating, the washer to be provided with groove, and the groove prolongs along the radial direction of the washer
It stretches, one end of the groove extends to the inward flange of the washer, and the other end extends to the outer edge of the washer.
2. powder zincizing preservative treatment auxiliary connection as described in claim 1, which is characterized in that the coating is covered in the spiral shell
The entire outer surface of bolt and the nut.
3. powder zincizing preservative treatment auxiliary connection as described in claim 1, which is characterized in that the coating is covered in the pad
The entire outer surface of circle.
4. powder zincizing preservative treatment auxiliary connection as described in claim 1, which is characterized in that be provided on the washer multiple
The groove, multiple grooves are uniformly arranged on the washer face from the center of the washer is radial.
5. powder zincizing preservative treatment auxiliary connection as described in claim 1, which is characterized in that the quantity of the washer is two
A, two washers are oppositely arranged, and one end for being away from each other of two washers bear against in the head of the bolt and
The nut.
6. the powder zincizing preservative treatment auxiliary connection as described in any one of claim 1-5, which is characterized in that the coating
Thickness be 35~45 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721657385.4U CN208040878U (en) | 2017-12-01 | 2017-12-01 | Powder zincizing preservative treatment auxiliary connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721657385.4U CN208040878U (en) | 2017-12-01 | 2017-12-01 | Powder zincizing preservative treatment auxiliary connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040878U true CN208040878U (en) | 2018-11-02 |
Family
ID=63958356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721657385.4U Active CN208040878U (en) | 2017-12-01 | 2017-12-01 | Powder zincizing preservative treatment auxiliary connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720405A (en) * | 2020-06-04 | 2020-09-29 | 河南航天精工制造有限公司 | Bolt and self-locking nut assembly |
-
2017
- 2017-12-01 CN CN201721657385.4U patent/CN208040878U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720405A (en) * | 2020-06-04 | 2020-09-29 | 河南航天精工制造有限公司 | Bolt and self-locking nut assembly |
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