CN110588949B

CN110588949B - Window body device and military helicopter comprising same

Info

Publication number: CN110588949B
Application number: CN201910870945.1A
Authority: CN
Inventors: 冯海兵; 欧迎春; 闫世斌; 陈昊; 杨幼然; 李丽丽; 朱治国; 孙皓天; 张延芳
Original assignee: Beijing Hangbo New Material Technology Co ltd; China Building Materials Academy CBMA
Current assignee: Beijing Hangbo New Material Technology Co ltd; China Building Materials Academy CBMA
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2021-03-02
Anticipated expiration: 2039-09-16
Also published as: CN110588949A

Abstract

The invention relates to a window body device and a military helicopter comprising the same, wherein the window body device comprises a base body, a transparent part, a sliding rail part and a limiting part, the sliding rail part comprises a first sliding rail and a second sliding rail which are parallel to each other, the limiting part is respectively connected with the first sliding rail and the second sliding rail, and the transparent part is slidably arranged on the first sliding rail and the second sliding rail; the slide rail part and the limiting part are bonded on the base body through bonding agents, and the bonding agents comprise polyurethane structural adhesive and a base coat treating agent. The invention solves the problems of sliding rail falling, sliding rail cracking, sliding rail glue failure, rain leakage and the like frequently occurring on the window body by matching the polyurethane structural adhesive and the primer treatment agent.

Description

Window body device and military helicopter comprising same

Technical Field

The invention relates to the field of windows, in particular to a window body device and a military helicopter comprising the same.

Background

The movable window widely used in the fields of airplanes, ships and the like is generally used for meeting the use requirements of lighting, ventilation, maintenance and the like, and the window is opened or closed by pushing the movable window to achieve the use purpose.

The sliding rail of the existing movable window is generally connected to the base body by screws, glue or the combination of the screws and the glue. The civil helicopters are low in speed and moderate in vibration compared with military aircrafts, and can meet the use requirements by being fixed in a mode of combining screws and sealing glue. However, the military helicopter has high speed in flight, needs various training and cannonball launching, so that the glass has large stress, is greatly subjected to various vibrations and has large impact in various high-temperature and low-temperature environment changes. If the slide rail is fixed on the glass in a mode of fixing the punching screw and the sealant, cracks are generated around the punched hole due to stress within a short service time, and the cracks are gradually enlarged to cause the glass to be scrapped.

The method only adopts a glue bonding mode to adopt the yellowish-white epoxy structure glue with high bonding strength to be too hard after being cured, and the glass substrate, the epoxy structure glue and the slide rail belong to a hard structure, a hard structure and a hard structure, so that the stress cannot be buffered, the vibration is severe, and a weak part can be damaged by vibration firstly. The ultraviolet glue is soft after being cured by colorless transparent ultraviolet glue with low bonding strength, the glass substrate, the ultraviolet glue and the sliding rail belong to a structure of hard, soft and hard, the stress can be buffered, but organic glass can absorb ultraviolet rays to cause incomplete curing of the ultraviolet glue, if the ultraviolet glue is cured completely for a prolonged period of time, the substrate glass and the sliding rail can not be delivered to users due to yellowing aging caused by over-long ultraviolet irradiation, the problem can not be solved, and the ultraviolet glue can absorb strong ultraviolet rays at high altitude to age more quickly due to the ultraviolet absorbent containing the ultraviolet absorbent in use, and can yellow, the bonding strength of the ultraviolet glue is low, and the faults of degumming, falling and the like can not be borne due to daily airplane vibration.

Therefore, the problems that the sliding rail of the movable window frequently falls off, the sliding rail cracks, the sliding rail is degummed and the like commonly exist in the movable window widely used at present, the fault rate is high, the normal use of a user is seriously influenced, the training plan of the user is often suspended, the after-sale maintenance service cost of a product is greatly increased, and the trust degree of the user on the product quality of a company is seriously influenced.

Disclosure of Invention

The invention mainly aims to provide a window body device, which solves the problems that a sliding rail of the window body device frequently falls off, the sliding rail cracks, the sliding rail is stripped, and the like, so that the window body device is more practical.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The window body device comprises a base body, a transparent part, a sliding rail part and a limiting part, wherein the sliding rail part comprises a first sliding rail and a second sliding rail which are parallel to each other; the slide rail part and the limiting part are bonded on the base body through bonding agents, and the bonding agents comprise polyurethane structural adhesive and a base coat treating agent.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

Preferably, the window assembly is characterized in that the primer coating treatment agent comprises the following raw materials in percentage by mass: 10-20% of N- (beta-aminoethyl-gamma-aminopropyl) trimethoxy silane, 10-30% of epoxy group 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 10-30% of acryloxy gamma- (methacryloyloxy) propyl trimethoxy silane, 19.5-69.5% of isopropanol and 0.1-1% of nano carbon black.

Preferably, the window assembly of the foregoing, wherein the preparation method of said undercoating treatment agent comprises the steps of: hydrolyzing N- (beta-aminoethyl-gamma-aminopropyl) trimethoxysilane, epoxy 3- (2, 3-epoxypropoxy) propyltrimethoxysilane, acryloxy gamma- (methacryloxy) propyltrimethoxysilane, isopropanol and nano carbon black in formula ratio at normal temperature, mixing, and performing condensation reaction at 90-120 ℃ to obtain the primer coating treating agent.

Preferably, the window assembly further comprises a reinforcing plate and a water-blocking strip;

the reinforcing plate is bonded on the substrate by the adhesive, and the reinforcing plate is respectively connected with the first sliding rail and the second sliding rail;

a water-blocking strip is fixed at one end of the transparent piece far away from the limiting piece,

when the transparent piece is abutted against the limiting piece, the water blocking strip is abutted against the reinforcing plate to form a sealing structure.

Preferably, the window assembly is further provided, wherein the water blocking strip is disposed on a side of the transparent member close to the base.

Preferably, the window assembly is as described above, wherein the reinforcing panel is an arc-shaped panel having a width of 15-25 mm.

Preferably, in the window assembly, the arc plate is bonded to the base body by using an adhesive, two ends of the arc plate are respectively connected to the first position of the first slide rail and the second position of the second slide rail, and a distance between a highest point of the arc plate and a connection line of the first position and the second position is 1 to 3 mm.

Preferably, in the window assembly, the material of the sliding rail portion is polycarbonate or ABS plastic modified by a modifier, wherein,

the modifier is a core-shell type impact modifier and a surface scratch resistant agent;

the core-shell type impact modifier takes a cross-linked butadiene styrene copolymer as a core and grafted polymethyl methacrylate as a shell, and the addition amount of the core-shell type impact modifier is 2-8% of the mass of polycarbonate or ABS plastic;

the surface scratch resistant agent is nano silicon dioxide or nano titanium dioxide, and the addition amount of the surface scratch resistant agent is 5-10% of the mass of the polycarbonate or ABS plastic.

Preferably, in the window device, a gasket is sleeved around the transparent member, and the gasket is a flocked fabric or a flocked strip.

Preferably, in the window device, the substrate is made of inorganic glass, polymethyl methacrylate, polycarbonate, stainless steel, aluminum alloy, polystyrene, polyvinyl chloride, epoxy-glass fiber reinforced plastic or polyether sulfone-glass fiber reinforced plastic;

the transparent piece is made of inorganic glass, polymethyl methacrylate or polycarbonate;

the reinforcing plate is made of polycarbonate;

the water-blocking strip is made of silicon rubber, ethylene propylene diene monomer rubber or polyurethane rubber.

The object of the present invention and the technical problem to be solved are also achieved by the following technical means. The military helicopter provided by the invention comprises the window device of any one of the preceding claims.

Preferably, the width of the sliding rail part is 20-23 mm.

By means of the technical scheme, the window device and the military helicopter comprising the same provided by the invention at least have the following advantages:

1. the invention uses adhesive to bond the slide rail part and the limiting part of the window body device on the substrate, and the adhesive comprises polyurethane structural adhesive and primer treatment agent. The adhesive disclosed by the invention belongs to a rubber state after being cured, is moderate in hardness and high in adhesive strength, can be used without punching on a substrate by matching the polyurethane structural adhesive and the base coat treating agent, can ensure that the adhesive does not crack and age for a long time, further ensures that the bonded sliding rail is not easy to fall off or shift, can buffer stress when vibrated, and has a long service life.

2. The invention achieves the effects of no water leakage and no scratch on glass through the structural design of the reinforcing plate and the water-blocking strip, and the arc-shaped plate is used as the reinforcing plate, so that the structure can ensure that a sufficient gap is formed between the transparent part and the base body, and the transparent part can be pushed and pulled freely.

3. The material of the sliding rail is polycarbonate or ABS plastic modified by a toughening agent and a surface scratch resistance agent, and the sliding rail made of the material is not easy to crack.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic view of a window assembly of an embodiment of the present invention without a transparent member;

FIG. 2 is a schematic structural view of section A-A of FIG. 1;

FIG. 3 is a schematic view of a transparent member provided with a pad and a handle according to an embodiment of the present invention;

FIG. 4 is a side view of a transparent member with a gasket and water barrier strip in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a window assembly with a transparent member mounted thereon according to one embodiment of the present invention;

FIG. 6 is a schematic structural view of section B-B of FIG. 4;

fig. 7 is a schematic view showing the construction of a window assembly having a transparent member mounted thereon according to another embodiment of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be made on the specific implementation, structure, features and effects of a window assembly and a military helicopter including the window assembly according to the present invention with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1 to 7, a window assembly according to an embodiment of the present invention includes a base 21, a transparent member 13, a sliding rail 11 and a limiting member 113, where the sliding rail 11 includes a first sliding rail 111 and a second sliding rail 112 that are parallel to each other, the limiting member 113 is connected to the first sliding rail 111 and the second sliding rail 112 respectively, and the transparent member 13 is slidably mounted on the first sliding rail 111 and the second sliding rail 112; the slide rail part 11 and the limiting part 113 are adhered to the substrate 21 by an adhesive 15, and the adhesive 15 comprises a polyurethane structural adhesive and a primer treatment agent.

Specifically, the transparent member 13 slides on the first slide rail 111 and the second slide rail 112, when the transparent member 13 abuts against the limiting member 113, the window device is in a closed state, the limiting member 113 is connected to the first slide rail 111 and the second slide rail 112, preferably, the limiting member 113 is integrally formed with the first slide rail 111 and the second slide rail 112 by injection molding, and more preferably, the limiting member 113 is integrally formed with the first slide rail 111 and the second slide rail 112 by using the same shape and material; the base 21 is provided with a through hole 22, the first slide rail 111, the second slide rail 112 and the limiting member 113 are respectively arranged on the base 21 adjacent to the through hole 22, and the distance from the first slide rail 111, the second slide rail 112 and the limiting member 113 to the through hole 22 is about 2-3 mm.

It should be noted that the shape and material of the substrate are not specifically limited, and the shape of the substrate includes a plane, a single curved surface, a double curved surface or other complex curved surface shapes. The shapes of the sliding rail part, the limiting part and the transparent part correspond to the shapes of the base body, so that the sliding rail part, the limiting part and the transparent part can be better attached to each other, for example, if the base body is a curved surface in the direction of the sliding rail part to be installed, the sliding rail part and the transparent part are corresponding curved surfaces, if the base body is a curved surface in the direction of the limiting part to be installed, the limiting part is also a corresponding curved surface, and in short, the surfaces where the sliding rail part, the limiting part and the transparent part are located are respectively in a parallel state with the surface where the base body is located. In the embodiment of the invention, the base body is not required to be perforated, so that the base body material is not strictly limited, and the long-term use condition can be met.

The slide rail part is not particularly limited, the first slide rail and the second slide rail which are parallel to each other are preferably arranged up and down correspondingly, and corners of the slide rail part can be set into round corners as required. The length of first slide rail and second slide rail can guarantee that the transparency can expose whole through-hole when sliding to avoid the transparency to deviate from slide rail portion.

The shape of the transparent member corresponds to the shape of the through-hole of the base, and the shapes of the through-hole and the transparent member are not particularly limited in the present invention. The size of the through holes is smaller than the size of the transparent member, for example, when the transparent member is a quadrangle, the shape of the through holes is preferably a corresponding quadrangle, and the side length of the transparent member is longer than the side length of the corresponding through holes. As shown in fig. 5, the through hole 22 and the transparent member 13 are both square, preferably, the through hole 22 is 250 × 250mm square, and the chamfer angles R20-R25 are formed, so that the right angle is easy to crack and the transparent member cannot crack after being chamfered; in this case, the transparent member 13 is preferably a square of 290X 290mm, and the chamfer R40-R45 is formed so that the transparent member 13 is larger than the through hole of the through hole 22. The length of the first slide rail and the length of the second slide rail are at least 530mm, the limiting piece, the first slide rail and the second slide rail are integrally formed, and corners are rounded corners. As shown in fig. 7, the through hole 22 and the transparent member 13 are both trapezoidal, the corners are designed as rounded corners, and the length of the slide rail portion 11 is at least 2 times the length of the long side of the transparent member 13. Leave 2 ~ 3mm gaps in the upper and lower limit portion apart from slide rail portion 11 and easily promote, the seam is too big to rock greatly.

The first slide rail and the second slide rail are located on two sides of the through hole, the first slide rail is preferably located right above the second slide rail, the first slide rail and the second slide rail are identical in length, the length of the first slide rail and the length of the second slide rail are about 2 times of the side length of a sliding edge on one side of the transparent part, the transparent part can be guaranteed to be exposed out of the whole through hole when the transparent part is in a fully opened state, and the application hole opening space is maximized. For example, in actual use, the handle is generally mounted 40mm away from the stopper, and an extra 30mm is left to ensure that the transparent member does not protrude out of the slide rail, so when the handle is fully opened, the minimum length of the slide rail is (transparent member-40) × 2+30mm — 530 mm.

The polyurethane structure adhesive and the primer treatment agent are not particularly limited, and commercially available products can be used. The polyurethane structural adhesive comprises black, white and gray polyurethane structural adhesives, and the primer treatment agent is matched with the polyurethane structural adhesive for use, so that the bonding strength of the polyurethane structural adhesive is enhanced.

It should be noted that the polyurethane structural adhesive and the primer treatment agent are not in a strict mass percentage relationship, and when the adhesive is used, a thin layer of primer treatment agent is brushed on the surface of a to-be-bonded object, the thickness of the primer treatment agent is controlled to be 0.2-1mm, and then the polyurethane structural adhesive with the thickness of 0.5-10mm is brushed, so long as the polyurethane structural adhesive and the primer treatment agent are bonded together and cannot fall off.

The primer coating treating agent can greatly improve the bonding strength of the polyurethane structural adhesive, so that the polyurethane structural adhesive is not easy to crack and can fall off, and the primer coating treating agent can keep better tensile shear strength for a long time.

As a preferred embodiment, the base coating treatment agent consists of the following raw materials in percentage by mass: 10-20% of N- (beta-aminoethyl-gamma-aminopropyl) trimethoxy silane, 10-30% of epoxy group 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 10-30% of acryloxy gamma- (methacryloyloxy) propyl trimethoxy silane, 19.5-69.5% of isopropanol and 0.1-1% of nano carbon black.

More preferably, the base coating treatment agent consists of the following raw materials in percentage by mass: 10% of N- (beta-aminoethyl-gamma-aminopropyl) trimethoxy silane, 30% of epoxy group 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 20% of acryloxy gamma- (methacryloyloxy) propyl trimethoxy silane, 39.5% of isopropanol and 0.5% of nano carbon black.

In the primer coating treatment agent of the present invention, isopropanol is used as a solvent. The grain size of the nano carbon black is 5-50nm, and the nano carbon black has good ultraviolet absorption, toughening and reinforcing effects.

The primer treatment agent contains coupling agents with various functional groups, can form chemical bonds with polyurethane structural adhesive and various base materials to be firmly combined, and does not fall off. The primer treatment agent is added into the polyurethane structural adhesive to improve the bonding strength of the polyurethane structural adhesive and the base material.

As a preferred embodiment, the preparation method of the primer treatment agent comprises the following steps: the preparation method of the primer treatment agent comprises the following steps: hydrolyzing N- (beta-aminoethyl-gamma-aminopropyl) trimethoxysilane, epoxy 3- (2, 3-epoxypropoxy) propyltrimethoxysilane, acryloxy gamma- (methacryloxy) propyltrimethoxysilane, isopropanol and nano carbon black in formula ratio at normal temperature, mixing, and performing condensation reaction at 90-120 ℃ to obtain the primer coating treating agent.

Before mixing, the components are respectively hydrolyzed at normal temperature, and then all the components are uniformly mixed at 90-120 ℃ for condensation reaction to connect the polyfunctional groups.

The raw materials of the primer coating treating agent contain a plurality of coupling agents, before mixing, the components are respectively hydrolyzed at normal temperature to form hydroxyl groups capable of undergoing condensation reaction, and then the hydroxyl groups are condensed together at high temperature to form the coupling agents containing a plurality of functional groups, wherein the condensation reaction time is 8-12 hours, preferably 10 hours. The obtained primer treatment agent can be well bonded with various base materials and can be well bonded with polyurethane glue, so that the purpose of improving the bonding force is achieved.

The adhesive disclosed by the invention belongs to a rubber state after being cured, is moderate in hardness and high in adhesive strength, can be used without punching on a substrate by matching the polyurethane structural adhesive and the base coat treating agent, can ensure that the adhesive does not crack and age for a long time, further ensures that the bonded sliding rail is not easy to fall off or shift, can buffer stress when vibrated, and has a long service life. Even if the window body device is used in a military helicopter, the window body device of the embodiment of the invention can not fall off or shift a sliding rail due to the fact that the window body device is high in flying speed, large in stress and large in vibration and is impacted by various high-temperature and low-temperature environment changes. The polyurethane structural adhesive contains various anti-aging agents such as carbon black, titanium dioxide and the like, is known to keep a rubbery state when used outdoors for 10 years on a train, has extremely long service life which exceeds the aging life (generally 5 years) of aircraft glass, and therefore, the adhesive can be completely used until the service life of the glass, and does not need to be replaced during the use. The glue is a structural glue with excellent ageing resistance, and a permanent elastic substance is formed by reaction and solidification of moisture in the atmosphere.

In a preferred embodiment, the window assembly further includes a reinforcement panel 12 and a water blocking strip 14;

the reinforcing plate 12 is bonded to the base 21 by the adhesive 15, and the reinforcing plate 12 is connected to the first slide rail 111 and the second slide rail 112 respectively;

the transparent member 13 is fixed with a water blocking strip 14 at one end far away from the limiting member 113,

when the transparent member 13 abuts against the limiting member 113, the water blocking strip 14 abuts against the reinforcing plate 12, and a sealing structure is formed.

Specifically, the through hole 22 is located in a space surrounded by the first slide rail 111 and the second slide rail 112, the limiting member 113 and the reinforcing plate 12, and a distance between the first slide rail 111 and the second slide rail 112, the limiting member 113 and the reinforcing plate 12 and the through hole 22 is about 2-3 mm.

The embodiment of the invention does not specifically limit the water-blocking strip, and can achieve the effect of sealing the water-blocking strip in contact with the reinforcing plate, and preferably selects a concave water-blocking strip or a square water-blocking strip. The water blocking strip and the reinforcing plate have a contact width of 2-3 mm. Through the structural design of the reinforcing plate and the water-blocking strip, the reinforcing plate and the water-blocking strip are matched with each other to form a sealing structure, so that the problem of frequent rain leakage of the window body is solved; the transparent part can be pushed and pulled freely on the sliding rail, and the effects of no water leakage and no glass rubbing are achieved.

In a preferred embodiment, the water-blocking strip 14 is disposed on a side of the transparent member 13 close to the substrate 21.

In a preferred embodiment, as shown in fig. 2, the reinforcing plate 12 is an arc-shaped plate, and the width thereof is 15 to 25 mm. Preferably 20 mm.

The distance from the reinforcing plate to the transparent part is 3-5 mm, and the distance can be filled with a water blocking strip to achieve sealing contact. Then use with the water blocking strip cooperation again, when the window form is in the closure state, the water blocking strip is pressed on the reinforcing plate, and the water blocking strip has 2 ~ 3 mm's contact width with the reinforcing plate, just so guarantees that water blocking strip and reinforcing plate complete contact are sealed, reaches the watertight purpose, has enough clearance push-and-pull freely, also can not rub each other and hinder.

In a preferred embodiment, the arc plate is adhered to the base 21 by an adhesive 15, two ends of the arc plate are respectively connected to a first position of the first slide rail 111 and a second position of the second slide rail 112, and a distance between a highest point of the arc plate and a connecting line of the first position and the second position is 1-3 mm.

Specifically, the reinforcing plate 12 is an arc-shaped plate, and is bonded to the base 21 by using a bonding agent 15, two ends of the reinforcing plate are respectively connected to the first position a of the first slide rail 111 and the second position b of the second slide rail 112, and the distance h between the highest point of the arc-shaped plate and the connecting line of the first position and the second position is 1-3 mm.

The reinforcing plate can be an arc plate for purchasing commodities, and can also be formed by bonding a flexible flat plate, the middle part of the reinforcing plate is padded by 3-5 mm by using a bonding agent, and the two end parts of the reinforcing plate are padded by 2-3 mm by using the bonding agent, so that a strip plate-shaped structure with radian is formed. The width of a projection of a groove, which is preferably used for contacting the track and the substrate, is 2-3 mm, and the distance from the end part of the strong plate 12 to the substrate 21 is 2-3 mm; the distance from the middle part of the reinforcing plate 12 to the base body 21 is 3-5 mm. The two end portions and the middle portion each occupy about one third of the length of the plate.

The both ends of reinforcing plate are connected with first slide rail and second slide rail respectively, and its both ends after bonding are equal high with the lower level of the recess of the first slide rail after bonding and second slide rail, the centre is higher than both ends about 1 ~ 3mm, there is sufficient clearance between transparent and the base member can be guaranteed in the design of this kind of structure, even transparent and base member take place to warp and also can not lead to rubbing each other at the push-and-pull in-process, this structure also has certain water guide function simultaneously, let the rainwater down flow along the reinforcing plate and do not get into inside the aircraft. The structure can ensure that enough clearance exists between the transparent part and the base body, the transparent part can be pushed and pulled freely, and the effects of no rain leakage and no glass rubbing are achieved.

Further preferably, as shown in fig. 1, the second slide rail 112 is located right below the first slide rail 111, and at least 2 drainage holes are provided on the second slide rail 112, wherein one drainage hole is located right below the reinforcing plate 12. The water drainage holes are more rows and more powerful, but in consideration of the strength of the slide rail, not too many holes can be formed, and it is preferable that the second slide rail 112 is provided with two water drainage holes 1112 and 1122, wherein one water drainage hole 1122 is located right below the reinforcing plate 12, and the two water drainage holes are designed. A drain hole is designed under the reinforcing plate and matched with the reinforcing plate, rainwater can flow downwards into the drain hole along the reinforcing plate and cannot enter the interior of an airplane, most of water is discharged from the drain hole, the rainproof function is further enhanced, and the situation that when the rainwater is too large, the drain hole cannot drain water quickly and the rainwater is leaked is avoided. Other rainwater is collected at the bottom of the slide rail and drained from other drainage holes.

In a preferred embodiment, the material of the sliding rail part 11 is polycarbonate or ABS plastic modified by a modifier, wherein the modifier is a core-shell type impact modifier and a surface scratch resistant agent;

The modification method comprises the following steps: the polycarbonate or ABS plastic is added with 5 percent of HHB520 core-shell type impact modifier toughening agent and 5 percent of nano silicon dioxide surface scratch resistant agent for modification, and then the high-temperature injection molding is carried out by using a special mold. This method is conventional in the art and will not be described further herein.

The core-shell type impact modifier can improve the impact strength without damaging other properties. The 5% HHB520 core-shell type impact modifier has excellent normal temperature toughening effect, can keep the toughened material to be toughened at the temperature of minus 40-minus 50 ℃, has little influence on other mechanical properties, has little impact reduction even after being thermally aged for 168 hours at the temperature of 135 ℃, has excellent stress cracking resistance, and has no cracking phenomenon after being bent and vibrated. Therefore, the toughened and modified sliding rail material is not easy to crack at ultra-low temperature and high temperature. Meanwhile, after 5 percent of nano silicon dioxide surface scratch resistance agent is added for modification, the modified nano silicon dioxide surface scratch resistance agent also has certain scratch resistance.

The invention uses the polycarbonate or ABS plastic modified by the core-shell type impact modifier and the surface scratch resistance agent as the material of the slide rail, can prevent the crack of the slide rail part, prolong the service life of the slide rail and further prolong the service life of the window device. Therefore, the slide rail made of the modified material can completely meet the use requirements of domestic and military helicopters.

As a preferred embodiment, as shown in fig. 3, a pad 131 is sleeved around the transparent member 13, and the pad 131 is a flocked fabric or a flocked strip.

The liner is sleeved around the transparent part and directly contacted with the sliding rail. The back of the pad is provided with a back adhesive which can be directly bonded on the periphery of the transparent part, the sealing is carried out after one circle of bonding, the back is similar to a sleeve, and the back is fixed by the back adhesive; or, the pad is made into a circle, the circumference of the circle is smaller than that of the transparent part, and the pad is directly sleeved on the transparent part when in use so as to be tightly attached to the periphery of the transparent part.

The flocking cloth material adopted by the invention can ensure that a small window can be freely pushed and pulled without rain leakage, and the existing rubber flocking can be delinted after short use time, thus resulting in unsmooth pushing and pulling. The flocked fabric is low in thickness and friction, and the problem of delinting does not occur in a weaving mode.

As shown in fig. 3 to 7, the transparent member 13 is provided with a handle 132;

the handle 132 is mounted on the transparent member 13.

Further, the handle 132 is fixed to the transparent member 13 by a screw 133 so that the handle 132 can be more firmly mounted to the transparent member 13.

The material of the handle 132 includes polycarbonate, ABS plastic, aluminum alloy, polyamide (nylon), polyoxymethylene, polypropylene, polyphenylene oxide, and polyester material.

The material of the screw 133 includes aluminum alloy and engineering plastic.

The handle is mounted on the closed end of the transparent member by screws, and the water blocking strip is adhered to the push-pull end of the transparent member by an adhesive.

In a preferred embodiment, the material of the substrate 21 is inorganic glass, polymethyl methacrylate, polycarbonate, stainless steel, aluminum alloy, polystyrene, polyvinyl chloride, epoxy-glass fiber reinforced plastic or polyethersulfone-glass fiber reinforced plastic;

the transparent piece 13 is made of inorganic glass, polymethyl methacrylate or polycarbonate;

the reinforcing plate 12 is made of polycarbonate;

the water-blocking strip 14 is made of silicon rubber, ethylene propylene diene monomer rubber or polyurethane rubber.

The material of the substrate includes but is not limited to: inorganic glass, polymethyl methacrylate, polycarbonate, stainless steel, aluminum alloy, polystyrene, polyvinyl chloride, epoxy-glass fiber reinforced plastic or polyether sulfone-glass fiber reinforced plastic. At present, the material of the substrate is mainly inorganic glass, polymethyl methacrylate and polycarbonate, and new transparent base materials such as cycloolefin polymer, phenolphthalein polycarbonate, polyimide and other advanced transparent materials are developed in about 10 years in the future, but can also be used on aluminum alloy, polystyrene, polyvinyl chloride and the like. These materials can be applied to the base material of the present invention.

According to the invention, the first slide rail and the second slide rail of the window body device are bonded on the substrate by using the bonding agent, and through the matched use of the polyurethane structural adhesive and the base coat treating agent, the adhesive is not easy to crack and age, so that the bonded slide rails are not easy to fall off or shift, and the service life of the bonding agent is prolonged. Furthermore, the modified material is used as the material of the slide rail, so that the slide rail is not easy to crack, and the service life of the slide rail is prolonged. Furthermore, through the structural design of the reinforcing plate and the water-blocking strip, a sufficient gap can be ensured between the transparent part and the base body, and the free push-pull is realized. Even transparent piece or base member take place to warp and also can not lead to taking place the rub at push-and-pull in-process in the use, prevent to rub and hinder glass. Meanwhile, the structure also has a certain water guide function, so that rainwater flows downwards along the reinforcing plate and does not enter the interior of the airplane. When the window body device is in a closed state, the contact width of the reinforcing plate and the water-blocking strip is 2-3 mm, and the transparent piece presses the water-blocking strip on the reinforcing plate, so that the water-blocking strip and the reinforcing plate are ensured to be completely contacted and sealed, and the aim of water leakage is fulfilled; when the window body device is in an opening state, the water-blocking strip is separated from the base body and is not contacted, and enough clearance is provided for freely pushing and pulling without scratching glass.

The embodiment of the invention also provides a military helicopter, which comprises a window device, wherein the window device comprises a base body 21, a transparent part 13, a slide rail part 11 and a limiting part 113, the slide rail part 11 comprises a first slide rail 111 and a second slide rail 112 which are parallel to each other, the limiting part 113 is respectively connected with the first slide rail 111 and the second slide rail 112, and the transparent part 13 is slidably mounted on the first slide rail 111 and the second slide rail 112; the slide rail part 11 and the limiting part 113 are adhered to the substrate 21 by an adhesive 15, and the adhesive 15 comprises a polyurethane structural adhesive and a primer treatment agent.

In a preferred embodiment, the window assembly is any one of the window assemblies described above.

The military helicopter comprises the window body device, the service life of the binder is long, the phenomena of glue failure and degumming are not easy to occur, and the slide rail prepared by the modified material is further used, so that the slide rail is not easy to crack, and the slide rail does not need to be replaced when in use. Meanwhile, the structural design of the reinforcing plate and the water-blocking strip ensures that the transparent part of the window body device can be pushed and pulled freely without water leakage or glass rubbing.

In a preferred embodiment, the width of the slide rail part is 20 to 23 mm.

According to the helicopter design standard (GJB2526 helicopter cabin visual field and instrument panel visual area-1995), the region with the total width not more than 50mm is allowed to be opaque in the whole glass region, when the polyurethane structural adhesive is used, the width of the sliding rail is designed to be 20-23 mm, and the high bonding strength is ensured not to fall off on the premise of not violating the design standard. No matter what kind of scheme is adopted to all present aircraft, see from pilot's cockpit outward that its slide rail bonding area is just opaque because of having 3 layers (glass + gluing + slide rail), consequently uses the opaque glue that has the colour and does not influence the actual use and also violate design standard. The commonly used epoxy structural adhesive and ultraviolet curing adhesive are transparent or semitransparent at first, but the yellowing phenomenon also occurs in about one year.

It should be noted that structures not mentioned in the present invention are all existing structures, and those skilled in the art can know them, and will not be described herein again.

The present invention will be further described with reference to the following specific examples, which should not be construed as limiting the scope of the invention, but rather as providing those skilled in the art with certain insubstantial modifications and adaptations of the invention based on the teachings of the invention set forth herein.

Example 1

A primer coating treatment agent for a polyurethane structural adhesive is prepared from the following raw materials in percentage by mass: 10% of N- (beta-aminoethyl-gamma-aminopropyl) trimethoxy silane, 30% of epoxy group 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 20% of acryloxy gamma- (methacryloyloxy) propyl trimethoxy silane, 39.5% of isopropanol and 0.5% of nano carbon black.

The preparation method of the primer treatment agent comprises the following steps: the components are respectively hydrolyzed at normal temperature, and then all the components are uniformly mixed at 100 ℃ for condensation reaction.

Example 2

A primer coating treatment agent for a polyurethane structural adhesive is prepared from the following raw materials in percentage by mass: 15% of N- (beta-aminoethyl-gamma-aminopropyl) trimethoxysilane, 20% of epoxy 3- (2, 3-glycidoxy) propyl trimethoxysilane, 10% of acryloxy gamma- (methacryloxy) propyl trimethoxysilane, 54.9% of isopropanol and 0.1% of nano carbon black.

The preparation method of the primer treatment agent comprises the following steps: the components are respectively hydrolyzed at normal temperature, and then all the components are uniformly mixed at 90 ℃ for condensation reaction.

Example 3

A primer coating treatment agent for a polyurethane structural adhesive is prepared from the following raw materials in percentage by mass: 20% of N- (beta-aminoethyl-gamma-aminopropyl) trimethoxy silane, 10% of epoxy group 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 30% of acryloxy gamma- (methacryloxy) propyl trimethoxy silane, 39% of isopropanol and 1% of nano carbon black.

The preparation method of the primer treatment agent comprises the following steps: the components are respectively hydrolyzed at normal temperature, and then all the components are uniformly mixed at 120 ℃ for condensation reaction.

The raw material components of the primer treatment agents in examples 1, 2 and 3 and the contents thereof are shown in Table 1.

TABLE 1 raw material composition and content of the undercoating agent in each example

Raw material components (mass percent)%)	Example 1	Example 2	Example 3
				N- (beta-aminoethyl-gamma-aminopropyl) trimethoxysilane	10	15	20
Epoxy 3- (2, 3-epoxypropoxy) propyltrimethoxysilane	30	20	10
				Acryloxy gamma- (methacryloxy) propyl tris (meth) acrylateMethoxy silane	20	10	30
Isopropanol (I-propanol)	39.5	54.9	39
				Nano carbon black	0.5	0.1	1

The subbing in examples 1, 2 and 3, the single-component N- (β -aminoethyl- γ -aminopropyl) trimethoxysilane, the single-component epoxy 3- (2, 3-glycidoxy) propyltrimethoxysilane and the single-component acryloxy γ - (methacryloxy) propyltrimethoxysilane as subbing were used in combination with the polyurethane structural adhesive, and after the polyurethane structural adhesive using the subbing and the polyurethane structural adhesive without the subbing were bonded to different substrates, respectively, the tensile shear strength was measured using the measurement of the tensile shear strength of the GB7124-2008-T adhesive as a test standard, and the results are shown in table 2.

TABLE 2 tensile shear strength of polyurethane structural adhesives

Note: the bonding thickness of the polyurethane structural adhesive is 4 mm.

As can be seen from the test results in table 2, the tensile shear strength of the polyurethane construction adhesives using the subbing of examples 1, 2 and 3 is significantly higher than the tensile shear strength of the polyurethane construction adhesives using N- (β -aminoethyl- γ -aminopropyl) trimethoxysilane, epoxy 3- (2, 3-glycidoxy) propyltrimethoxysilane, and acryloxy γ - (methacryloyloxy) propyltrimethoxysilane, as well as the non-subbing polyurethane construction adhesives, as a single component, and the tensile shear strength can be increased even 50-fold relative to the polyurethane construction adhesives without the subbing. When the adhesive is used, the bottom coating adhesive is coated on the surfaces of the base body and the slide rail, then the polyurethane structural adhesive is coated, the polyurethane structural adhesive is naturally cured at room temperature, the bonding strength is very high, the adhesive does not come off in a test of adding a counter weight according to the maximum force borne by an airplane, the base body is pulled and broken, the adhesive failure phenomenon does not occur, the fact that the polyurethane structural adhesive using the bottom coating adhesive can be firmly bonded with each base material is proved, and the bonding strength of the structural adhesive completely meets the use conditions.

Example 4

And respectively adding 5% of HHB520 core-shell impact modifier toughening agent and 5% of nano silicon dioxide surface scratch resistance agent into the polycarbonate and the ABS plastic for modification, and performing high-temperature injection molding by using a special mold to obtain the modified polycarbonate slide rail and the modified ABS plastic slide rail.

The modified polycarbonate slide rail and the modified ABS plastic slide rail are respectively bonded by using a polyurethane structural adhesive added with a base coat treating agent and a polyurethane structural adhesive not added with the base coat treating agent, the tensile shear strength of the adhesive is measured by using the measurement of the tensile shear strength of a GB7124-2008-T adhesive in a test standard, the vibration test is tested according to a GJB150.16 vibration test, and the rain test is tested according to a GJB150.8 rain test. And the measured results are shown in table 3.

TABLE 3 Performance testing of slide rail materials and polyurethane structural adhesives

Note: the bonding thickness of the polyurethane structural adhesive is 4 mm.

The test results in table 3 show that the tensile shear strength of the polyurethane structural adhesive without the primer treatment agent is 0.1-0.2 MPa, and according to the industrial use experience, the tensile shear strength is lower than 1MPa, and therefore degumming is easy to occur. The tensile shear strength of the polyurethane structural adhesive added with the primer treatment agent can reach 4.0-5.0 MPa. The tensile shear strength of the polyurethane structural adhesive added with the primer treatment agent is obviously higher than that of the adhesive without the primer treatment agent, and can be even improved by 50 times. The vibration test result shows that the modified polycarbonate slide rail or the modified ABS plastic slide rail does not have the phenomena of falling, glue failure or cracking, and the rain test shows that the rain leakage phenomenon does not exist.

In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "vertical", and the like indicate orientations or positional relationships based on methods or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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.

In addition, in the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A window body device comprises a base body, a transparent part, a sliding rail part and a limiting part, wherein the sliding rail part comprises a first sliding rail and a second sliding rail which are parallel to each other; the slide rail part and the limiting part are respectively bonded on the base body by using a bonding agent, and the bonding agent comprises a polyurethane structural adhesive and a base coat treating agent;

the primer coating treating agent consists of the following raw materials in percentage by mass: 10-20% of N- (beta-aminoethyl-gamma-aminopropyl) trimethoxy silane, 10-30% of epoxy group 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 10-30% of acryloxy gamma- (methacryloyloxy) propyl trimethoxy silane, 19.5-69.5% of isopropanol and 0.1-1% of nano carbon black.

2. A window assembly as defined in claim 1,

the preparation method of the primer treatment agent comprises the following steps: hydrolyzing N- (beta-aminoethyl-gamma-aminopropyl) trimethoxysilane, epoxy 3- (2, 3-epoxypropoxy) propyltrimethoxysilane, acryloxy gamma- (methacryloxy) propyltrimethoxysilane, isopropanol and nano carbon black in formula ratio at normal temperature, mixing, and performing condensation reaction at 90-120 ℃ to obtain the primer coating treating agent.

3. A window assembly as defined in claim 1,

the window body device also comprises a reinforcing plate and a water-blocking strip;

4. A window arrangement according to claim 3,

the water blocking strip is arranged on one side of the transparent piece close to the base body.

5. A window arrangement according to claim 3,

the reinforcing plate is an arc-shaped plate, and the width of the reinforcing plate is 15-25 mm.

6. A window arrangement according to claim 5,

the arc-shaped plate is bonded to the base body through a bonding agent, two ends of the arc-shaped plate are connected to the first position of the first sliding rail and the second position of the second sliding rail respectively, and the distance between the highest point of the arc-shaped plate and the connecting line of the first position and the second position is 1-3 mm.

7. A window assembly as defined in claim 1,

the material of the sliding rail part is polycarbonate or ABS plastic modified by a modifier, wherein,

8. A window assembly as defined in claim 1,

the periphery of the transparent piece is sleeved with a liner, and the liner is flocked cloth or flocked strips.

9. A window arrangement according to claim 3,

the material of the substrate is inorganic glass, polymethyl methacrylate, polycarbonate, stainless steel, aluminum alloy, polystyrene, polyvinyl chloride, epoxy-glass fiber reinforced plastic or polyether sulfone-glass fiber reinforced plastic;

the reinforcing plate is made of polycarbonate;

10. A military helicopter comprising a window assembly according to any one of claims 1 to 9.

11. The military helicopter of claim 10,

the width of slide rail portion is 20 ~ 23 mm.