CN213298660U

CN213298660U - Two-way memory alloy variable pitch spring

Info

Publication number: CN213298660U
Application number: CN202021577540.3U
Authority: CN
Inventors: 孙淑琴; 谢筱萍; 左近芝; 盛一
Original assignee: Nanjing Hangtai Electromechanical Co ltd; Nanjing Xinghe Precision Intelligent Manufacturing Research Institute Co ltd
Current assignee: Nanjing Hangtai Electromechanical Co ltd; Nanjing Xinghe Precision Intelligent Manufacturing Research Institute Co ltd
Priority date: 2020-08-01
Filing date: 2020-08-01
Publication date: 2021-05-28
Anticipated expiration: 2030-08-01

Abstract

The utility model discloses a two-way memory alloy variable pitch spring, including variable pitch spring body, the surface of variable pitch spring body is scribbled and is equipped with the anticorrosive coating, the anticorrosive coating includes polyimide dope layer, cyanogen congeals dope layer and polytetrafluoroethylene dope layer, the internal surface of variable pitch spring body is scribbled and is equipped with the antirust coat, the polyimide dope layer is located the top of cyanogen congeals the dope layer. The utility model discloses a variable pitch spring body, the antirust coat, the rich zinc priming paint layer of epoxy, epoxy iron red priming paint layer, the anticorrosive coating, the polyimide dope layer, the cooperation of cyanogen congeals dope layer and polytetrafluoroethylene dope layer is used, the effectual advantage of anticorrosion has been reached, it is not good to have solved current two journey memory alloy variable pitch spring anticorrosion effect when using, often alloy variable pitch spring long-time service surface can damage to as for influencing alloy variable pitch spring life, consequently the problem that people used not convenient for.

Description

Two-way memory alloy variable pitch spring

Technical Field

The utility model relates to the technical field of springs, specifically a two-way memory alloy variable pitch spring.

Background

The spring is a mechanical part which works by utilizing elasticity, the part made of elastic materials deforms under the action of external force and recovers to the original shape after the external force is removed, the spring is also used as a 'spring', the types of the spring are complex and various, and the spring mainly comprises a spiral spring, a volute spiral spring, a plate spring, a special-shaped spring and the like according to the shape, while the traditional two-way memory alloy variable pitch spring has poor anti-corrosion effect when in use, and the surface of the alloy variable pitch spring is damaged after long-time use, so that the service life of the alloy variable pitch spring is influenced, and the alloy variable pitch spring is inconvenient to use by people.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a two-way memory alloy becomes pitch spring possesses the effectual advantage of anticorrosion, and it is not good to have solved current two-way memory alloy becomes pitch spring anticorrosion effect when using, and often alloy becomes pitch spring long-time use surface and can damage to as for influence alloy variable pitch spring life, the problem of consequently not being convenient for people to use.

(II) technical scheme

For realizing the above-mentioned effectual purpose of anticorrosion, the utility model provides a following technical scheme: the double-stroke memory alloy variable-pitch spring comprises a variable-pitch spring body, wherein an anticorrosive coating is coated on the outer surface of the variable-pitch spring body, the anticorrosive coating comprises a polyimide coating layer, a cyanogen condensation coating layer and a polytetrafluoroethylene coating layer, and an anticorrosive coating is coated on the inner surface of the variable-pitch spring body.

Preferably, the polyimide coating layer is located on the top of the cyanogen condensation coating layer, and the cyanogen condensation coating layer is located on the top of the polytetrafluoroethylene coating layer.

Preferably, the thickness of the polyimide coating layer is 0.1-0.3 mm, the thickness of the cyanogen condensation coating layer is 0.2-0.5 mm, and the thickness of the polytetrafluoroethylene coating layer is 0.2-0.6 mm.

Preferably, the anti-rust layer comprises an epoxy zinc-rich primer layer and an epoxy iron-red primer layer, and the epoxy zinc-rich primer layer is positioned on the top of the epoxy iron-red primer layer.

Preferably, the thickness of the epoxy zinc-rich primer layer is 0.1 mm-0.4 mm, and the thickness of the epoxy iron red primer layer is 0.2 mm-0.5 mm.

(III) advantageous effects

Compared with the prior art, the utility model provides a two-way memory alloy variable pitch spring possesses following beneficial effect:

1. the utility model discloses a variable pitch spring body, the antirust coat, the rich zinc priming paint layer of epoxy, epoxy iron red priming paint layer, the anticorrosive coating, the polyimide dope layer, the cooperation of cyanogen congeals dope layer and polytetrafluoroethylene dope layer is used, the effectual advantage of anticorrosion has been reached, it is not good to have solved current two journey memory alloy variable pitch spring anticorrosion effect when using, often alloy variable pitch spring long-time service surface can damage to as for influencing alloy variable pitch spring life, consequently the problem that people used not convenient for.

2. The utility model discloses a zinc priming paint layer is riched to epoxy, and zinc priming paint layer is riched to epoxy has that mechanical properties is good, hardness is high, plasticity is good, water proofness, rust-resistant and resistant erosion.

3. The utility model discloses an epoxy iron oxide red priming paint layer, epoxy iron oxide red priming paint layer have good rust-resistant, water resistance and chemical resistance, and the adhesion is good after coating moreover.

4. The utility model discloses a polyimide dope layer, polyimide dope layer have good mechanics, resistant irradiation, mechanical properties good, tensile strength is high, resistant organic solvent, resistant ozone, mould proof and corrosion resistance good.

5. The utility model discloses a cyanogen congeals the dope layer, cyanogen congeals the dope layer and has long service life, resistant time, ageing-resistant, resistant greasy dirt, waterproof and corrosion resisting property superiority, and nontoxic, tasteless, pollution-free and construction safety is simple and convenient.

6. The utility model discloses a polytetrafluoroethylene dope layer, polytetrafluoroethylene dope layer have the acid-fast alkali-resistant, corrosion-resistant, anti various organic solvent and high temperature resistance can be good.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the body structure of the variable pitch spring of the present invention;

FIG. 3 is a cross-sectional view of the anti-rust layer structure of the present invention;

fig. 4 is a cross-sectional view of the corrosion protection layer structure of the present invention.

In the figure: 1. a variable pitch spring body; 2. a rust-proof layer; 201. an epoxy zinc-rich primer layer; 202. an epoxy iron red primer layer; 3. an anticorrosive layer; 301. a polyimide coating layer; 302. a cyanamide coating layer; 303. and a polytetrafluoroethylene coating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a variable pitch spring body 1, antirust coat 2, epoxy zinc-rich priming paint layer 201, epoxy iron red priming paint layer 202, anticorrosive coating 3, polyimide dope layer 301, cyanogen congeals dope layer 302 and polytetrafluoroethylene dope layer 303 part and is the part that universal standard spare or field technician know, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-4, a two-way memory alloy variable pitch spring comprises a variable pitch spring body 1, an anti-corrosion layer 3 is coated on the outer surface of the variable pitch spring body 1, the anti-corrosion layer 3 comprises a polyimide coating layer 301, a cyanogen coagulation coating layer 302 and a polytetrafluoroethylene coating layer 303, the polyimide coating layer 301 is positioned on the top of the cyanogen coagulation coating layer 302, the cyanogen coagulation coating layer 302 is positioned on the top of the polytetrafluoroethylene coating layer 303, the thickness of the polyimide coating layer 301 is 0.1 mm-0.3 mm, the thickness of the cyanogen coagulation coating layer 302 is 0.2 mm-0.5 mm, the thickness of the polytetrafluoroethylene coating layer 303 is 0.2 mm-0.6 mm, through the polyimide coating layer 301, the polyimide coating layer 301 has good mechanical properties, good radiation resistance, good mechanical properties, high tensile strength, good organic solvent resistance, good ozone resistance, good mildew resistance and good corrosion resistance, and the cyanogen coagulation coating layer 302 has a long service life, and a good corrosion resistance, The variable pitch spring body 1 is coated with an anti-rust layer 2 on the inner surface, the anti-rust layer 2 comprises an epoxy zinc-rich primer layer 201 and an epoxy iron red primer layer 202, the epoxy zinc-rich primer layer 201 is positioned on the top of the epoxy iron red primer layer 202, the epoxy zinc-rich primer layer 201 is 0.1-0.4 mm thick, the epoxy iron red primer layer 202 is 0.2-0.5 mm thick, the epoxy zinc-rich primer layer 201 is good in mechanical property, high in hardness, good in plasticity, water resistance, rust resistance and corrosion resistance, and the epoxy iron red primer layer 202 is good in anti-rust performance and anti-rust performance through the epoxy iron red primer layer 202 and the epoxy iron red primer layer 202, Water resistance and chemical corrosion resistance, and good adhesion after coating.

When in use, the outer surface of the variable pitch spring body 1 is coated with the anticorrosive coating 3, the anticorrosive coating 3 comprises a polyimide coating layer 301, a cyanogen condensation coating layer 302 and a polytetrafluoroethylene coating layer 303, the polyimide coating layer 301 is positioned on the top of the cyanogen condensation coating layer 302, the cyanogen condensation coating layer 302 is positioned on the top of the polytetrafluoroethylene coating layer 303, the polyimide coating layer 301 is arranged to have good mechanics, irradiation resistance, good mechanical property, high tensile strength, organic solvent resistance, ozone resistance, mildew resistance and corrosion resistance, the cyanogen condensation coating layer 302 is arranged to have long service life, weather resistance, aging resistance, oil stain resistance, excellent waterproof and anticorrosive properties, no toxicity, no odor, no pollution and safe and simple construction, the polytetrafluoroethylene coating layer 303 is arranged to have acid and alkali resistance, corrosion resistance, various organic solvents resistance and good high temperature resistance, and the anticorrosive effect is good through the matching of the structures, the problem of current two-way memory alloy variable pitch spring anticorrosion effect when using not good, often alloy variable pitch spring long-time use surface can damage to so that influence alloy variable pitch spring life, consequently not convenient to people use is solved.

While embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various modifications and changes can be made in the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a two-way memory alloy variable pitch spring, includes variable pitch spring body (1), its characterized in that: the variable pitch spring is characterized in that an anti-corrosion layer (3) is coated on the outer surface of the variable pitch spring body (1), the anti-corrosion layer (3) comprises a polyimide coating layer (301), a cyanogen condensation coating layer (302) and a polytetrafluoroethylene coating layer (303), and an anti-corrosion layer (2) is coated on the inner surface of the variable pitch spring body (1).

2. The two-way memory alloy variable pitch spring of claim 1, wherein: the polyimide coating layer (301) is located on the top of the cyanogen condensation coating layer (302), and the cyanogen condensation coating layer (302) is located on the top of the polytetrafluoroethylene coating layer (303).

3. The two-way memory alloy variable pitch spring of claim 1, wherein: the thickness of the polyimide coating layer (301) is 0.1-0.3 mm, the thickness of the cyanogen condensation coating layer (302) is 0.2-0.5 mm, and the thickness of the polytetrafluoroethylene coating layer (303) is 0.2-0.6 mm.

4. The two-way memory alloy variable pitch spring of claim 1, wherein: the anti-rust layer (2) comprises an epoxy zinc-rich primer layer (201) and an epoxy iron-red primer layer (202), wherein the epoxy zinc-rich primer layer (201) is positioned on the top of the epoxy iron-red primer layer (202).

5. The two-way memory alloy variable pitch spring of claim 4, wherein: the thickness of the epoxy zinc-rich primer layer (201) is 0.1-0.4 mm, and the thickness of the epoxy iron red primer layer (202) is 0.2-0.5 mm.