RU2317198C1 - Method of manufacture of the glass-fiber housing used, for example, for the locomotive gear box and the housing manufactured by this method - Google Patents

Abstract

FIELD: chemical industry; engineering industry; other industries; methods of manufacture of the locomotive gear box glass-fiber housings.

SUBSTANCE: the invention is pertaining to the field of manufacture of the multilayer products and may be used at molding of the laminated articles out of the polymeric composite materials. The method of manufacture of the glass-fiber housing provides for the laying out of the glass-fiber fabric layers into the shaping fitment and placing between the layers of no less than one layer of the fiberfill. The shaping fitment consists of two detachable parts, on which apply the separating layer of the wax, then superimpose some layers of the fiber glass fabric, each of which is saturated with the binding solution. The following operation consists in rolling by the roll and superposing of some layers of the emulsion-bonded glass fiber mat interleaving them with the roving fiber glass fabric. Drying is conducted at the indoor temperature. On the coupling flanges of both parts of the housing and round the hole for bracing of the bosses superimpose the additional layers of the fiber glass fabric and the glass fiber mat. After the assemblage on the outer surface of the housing apply the moisture resistant moisture-resistant enamel. The invention presents the method of production of the cheap, simple in production, sturdy, reliable, moisture-resistant housing for the locomotive gear box.

EFFECT: the invention presents the method of manufacture of the cheap, simple in production, sturdy, reliable, moisture-resistant housing for the locomotive gear box.

2 cl, 2 dwg

Description

The present invention relates to the manufacture of multilayer products and may find application in the formation of layered products from polymer composite materials.

A known method of manufacturing layered products from polymer composite materials (RU No. 21116887, B29C 43/20 from 04/04/1996, publ. 08/10/1998).

This method involves obtaining layered products by laying alternating layers of prepreg and fibrous filler.

The disadvantage of this method is the complex manufacturing technology associated with the use of a drainage system, a vacuum system, high temperatures. The products obtained by this method do not have sufficient mechanical strength, because fiber layers are not impregnated with a binder solution.

The specified method is selected by the applicant as the closest analogue (prototype).

The technical problems solved by the authors of the present invention is the creation of a method of obtaining an economical, technological, durable, reliable, moisture-proof casing for the gear transmission of a locomotive.

The objectives are achieved in that in a method of manufacturing a fiberglass casing, for example, for gearing a locomotive, including laying out layers of fiberglass in a shaping tooling, laying between layers of at least one layer of fibrous filler, according to the invention, a shaping tooling consisting of two detachable parts is applied separation layer with Finish Gruber BLUE Wax 333 brand wax, then several layers of fiberglass EZ-200P (95) are applied, each of which is impregnated with a binder solution obtained and AROPOL M105TV brand resins and Butenox M-50 hardener, and rolled with a roller, then several layers of Owens Corning M723A 300 GSM 125 CMIEDGE TRMDCLP Cod 395192 emulsion-coupled glass mat are applied, alternating with TP-0.7 (100) roving fiberglass, each impregnated layers of the specified binder solution, roll the layers with a roller, dry at ambient temperature, and additional layers of fiberglass and glass mat are applied to the connecting flanges of both parts of the casing and along the perimeter of the hole for attaching the bosses, while the casing parts are assembled in place and their layers of flange connection are applied several layers of fiberglass and glass mat, impregnated with a binder solution and simultaneously pulled together by means of a bolt connection, and after assembly, moisture-resistant enamel is applied to the outer surface of the casing.

Applying a separation layer on the forming tooling before laying the layers of fiberglass prevents them from sticking to it, and the brand of wax used guarantees the reliability of coating the surface of the tooling.

Laying out several (at least three) layers of the inventive brand of fiberglass (with dense weaving of fibers) with the impregnation of each layer with a binder solution obtained from the claimed components ensures the formation of a strong casing wall. Rolling the layers with a roller eliminates the presence of air bubbles between the layers and guarantees the impermeability of the casing walls. The inventive brands of fiberglass and glass mat, as well as components for a binder solution are optimal to achieve the listed indicators of strength and reliability. In addition, the resin used for the binder solution is deformed at temperatures above 66 ° C, while the temperature during operation of the casing is up to 40 ° C, which eliminates the deformation of the casing and retains its mechanical properties.

Laying out the following layers of emulsion-bound glass mat alternating with layers of a different type of fiberglass (with sparse weaving of fibers, but with an increased thickness of the fabric), impregnation of each layer with a binder solution and a rolling roller allows to achieve increased mechanical strength of the casing as a whole, to prevent its destruction in the process operation.

Drying the formed casing at ambient temperature is economical since no auxiliary devices, such as furnaces, are required, which saves energy.

The application of additional layers of fiberglass and glass mat on the connecting flanges and attachment points of the bosses provides the strength of these places, prevents destruction under loads during operation and prevents, for example, nigrol from their casing.

When several parts of the casing are applied during assembly of the parts of the casing to the flange joints, several layers of fiberglass and glass mat are impregnated with their binder solution with simultaneous tightening with bolts to ensure reliable and leak-proof joints.

Painting after assembling the outer surface of the casing with moisture-resistant enamel eliminates moisture absorption, which prevents the separation of layers of fabric and allows you to save the mechanical strength of the casing.

Traditionally, the gear cover of locomotives (both electric and diesel locomotives) is made of metal.

The disadvantage of such casings is the large metal consumption, because to ensure their mechanical strength, the wall thickness is large enough. The metal casing weighs more than 100 kg, therefore during vibrations during operation through the seal between the connecting flanges there are leaks of nigrol, which is present in the casing for lubricating gears. Its level is maintained constant.

The technical problems solved by the authors are the creation of an economical, technological, durable, impermeable casing.

The objectives are achieved in that in a fiberglass casing, for example, for gearing a locomotive, consisting of two detachable parts interconnected by means of a bolt connection, and containing metal bosses for securing the casing, according to the invention, each of the casing parts is made of alternating layers of fiberglass grades EZ-200P (95), TP-0.7 (100) and Owens Corning M723A 300 GSM 125 CMIEDGE TRMDCLP Cod 395192 emulsion-bonded glass mat impregnated with a binder solution consisting of AROPOL M105TB brand resin and Butenox M-50 hardener, pr What is more, the thickness of the connecting flanges and the zone around the perimeter of the hole for attaching the bosses exceeds the thickness of the layers of the walls of the casing, and the bosses are solid.

The manufacture of a casing for the gear drive of a locomotive (electric or diesel locomotive) from laminated fiberglass using the inventive brands of fiberglass, glass mat and a binder solution allows you to create an economical, technological, durable, impermeable casing for gear transmission of a locomotive.

The thickness of the connecting flanges and the area around the perimeter of the hole for attaching the bosses is greater than the wall thickness of the casing, ensures the strength of these most loaded during operation of the casing, eliminates their destruction, the occurrence of cracks during vibration.

The use of solid cast bosses increases their reliability during operation, as they have increased strength compared to welded ones.

As a result of the patent studies, no similar technical solutions known from the prior art that are characterized by the claimed combination of features have been identified, which allows us to conclude that the proposed inventions meet the criteria of “novelty” and “inventive step”, may find application in industry, i.e. meets the criterion of "industrial applicability".

At one of the enterprises in Chelyabinsk, a method of manufacturing fiberglass casings for the gear transmission of locomotives was mastered.

The invention is illustrated by drawings, where in Fig.1 is a General view of the casing for the gear; figure 2 is a section along aa in figure 1.

A method of manufacturing a fiberglass casing, for example, for the gearbox of a locomotive is as follows.

Finish Gruber BLUE Wax 333 molten wax is applied to the forming tool. Fiberglass EZ-200P (95), TP-0.7 (100) and emulsion-bound glass mat Owens Corning M723A 300 GSM 125 CMIEDGE TRMDCLP Cod 395192 are cut. a binder solution obtained from resin brand AROPOL M105TB and hardener butenox M-50. First, at least three layers of fiberglass of the EZ-200P grade (95) are sequentially applied to the tooling, impregnating each layer with a binder solution, and rolled with a roller to exclude air bubbles between the layers and evenly distribute the layers of fiberglass along the tooling contour. Then layers of glass mat of the brand Owens Corning M723A 300 GSM 125 CMIEDGE TRMDCLP Cod 395192 are applied, which are alternated with fiberglass brand TP-0.7 (100), impregnating each layer of both materials with a binder solution and rolling with a roller. Layers overlap. Additional layers of fiberglass and glass mat impregnated with a binder solution are applied to the connecting flanges and places in the area of the holes for attaching the bosses for reinforcement. Check the dimensions in accordance with the drawings and dry for at least 20 hours at ambient temperature. Before assembling the two parts of the formed casing, at least three layers of fiberglass impregnated with a binder solution are applied to the connecting flanges and immediately tightened with bolts, thereby ensuring tightness and strength of the connection. After assembly, the outer surface of the casing is coated with moisture resistant enamel.

The casing 1 contains two detachable parts 2, connecting flanges 3, a bolt connection 4, a hole 5 for bosses 6, with which the casing is fixed to the locomotive. The bosses 6 are mounted on the casing 1 using bolts 7.

The connecting flanges 3 and the area around the holes 5 are thicker than the walls of the casing 1. The bosses 6 are made of solid cast.

The casing is made by the claimed method, and after drying, two parts 2 of the casing 1 are connected by means of a bolt connection 4, preliminarily applying a layer of fiberglass and glass mat impregnated with a binder solution to the connecting flanges 3, and then tighten with bolts 4. To achieve impermeability, the outer surface of the casing 1 after assembly coated with moisture resistant enamel.

The casing obtained by this method has the strength and reliability. Used solid cast bosses have increased strength and are not destroyed during operation.

Thus, the inventive method of manufacturing a fiberglass casing for the gear transmission of locomotives is economical, technologically advanced, provides reliability and strength of the casing obtained by this method due to the use of modern materials that provide these indicators and manufacturing techniques.

Claims (2)

1. A method of manufacturing a fiberglass casing, for example, for gearing a locomotive, comprising laying out layers of fiberglass in a forming tool, laying between layers of at least one layer of fibrous filler, characterized in that a separating layer is applied with wax on a forming tool consisting of two detachable parts Finish Gruber BLUE Wax 333 brand, then apply several layers of fiberglass brand EZ-200P (95), each of which is impregnated with a binder solution obtained from AROPOL M105TB brand resin and butenok hardener with M-50 and rolled with a roller, then several layers of Owens Corling M723A 300 GSM 125 CMIEDGE TRMDCLP Cod 395192 emulsion-bonded glass mat are applied, alternating them with T3-0.7 (100) roving fiberglass with each layer impregnated with the specified binder, the layers are rolled with a roller, dried at room temperature, moreover, additional layers of fiberglass and glass mat are applied to the connecting flanges of both parts of the casing and around the hole for attaching the bosses, while several layers of glass are applied to the places of their flange connection when assembling the casing parts. fabric and mat impregnated with a binder solution and pull together by bolting, and after assembly to the outer casing surface of the applied water-resistant enamel. 2. Fiberglass casing, for example, for a gear train of a locomotive, consisting of two detachable parts interconnected by means of a flange connection, and containing bosses for attaching the casing, characterized in that each of the parts of the casing is made of alternating layers of fiberglass grades EZ-200P ( 95), TP-0.7 (100) and Owens Corling M723A 300 GSM 125 CMIEDGE TRMDCLP Cod 395192 emulsion-bonded glass mat impregnated with a binder solution consisting of AROPOL M105TB brand resin and M-50 butenox hardener, the thickness of the connecting flanges and the perimeter zoneholes for mounting the bosses exceeds the thickness of the layers of the walls of the casing, and the bosses are made cast.

Images