RU79490U1 - PRESS FORM FOR PRODUCING WHEELS FROM POLYMERIC COMPOSITE MATERIALS - Google Patents

Abstract

The invention relates to the field of transport engineering, in particular to the production of wheels from elastic polymer composite materials. The technical result consists in reducing the complexity of manufacturing a vehicle wheel assembly and expanding the technological capabilities of production equipment. The technical result is achieved by the fact that the metal rim of the vehicle’s wheel is part of the mold in the manufacture of the tire, is clamped and centered simultaneously with a figured ring between the two disks to form a cavity having the shape of a manufactured tire, and its outer surface has grooves that prevent the tire from turning relative to the rim. Between the two disks 2 and 5, with the help of nuts 8 and the studs 9 located in the center and around the perimeter of the mold, the metal rim of the wheel 1 and the ring 3 are clamped and centered. An annular cavity A is formed into which, using the worm press 6, from the mixer 7 Unpolymerized polyurethane is injected under pressure. To ensure the quality of the polyurethane tire, a tube 4 is installed in the upper disk 5, through which air is forcibly removed and a vacuum is created in cavity A. To securely fasten the polyurethane tire and prevent it from turning relative to the wheel rim, the outer surface of the rim has grooves.

Description

The invention relates to the field of transport engineering, in particular to the production of wheels from elastic polymer composite materials.

Known designs of wheels, the inner and outer rims of which are interconnected by elastic spokes [1, 2].

In the well-known Michelin Tweel automobile wheel design [1], the inner polymer rim is mounted on a metal drum that secures the wheel to a hub. In the design of the wheel with internal suspension [2], the internal metal disk, with which the wheel is attached to the hub, also serves as a brake drum.

There are known wheel designs with massive solid cast tires for loaders, which are operated in the conditions of metalworking and machine-building plants, where there is a risk of damage to the wheels with metal chips or other sharp objects. Massive solid tires do not require maintenance in operation and are more reliable than traditional pneumatic tires. For the installation of solid massive tires on the wheel rim, special equipment is required that allows you to press the tire onto the rim with a guaranteed interference fit. This fact does not allow the installation of tires in any tire workshop.

Currently, wheels with elastic deformable spokes and massive solid tires are made of flexible polyurethane, obtained by mixing two or more components from polyester resins followed by cold polymerization. Due to the properties

used material, wheels with elastic spokes made of polyurethane in comparison with traditional pneumatic tires have less weight and higher lateral stiffness and radial elasticity.

Massive tires made of flexible polyurethane also have high performance properties.

Known methods for the production of products from polyurethane by casting in vacuum or under pressure. In this case, an important step is the preliminary mixing of the reactive components of the molding composition using screw or hydrodynamic mixers. The relatively simple technology for the production of polyurethane products and the low cost of injection molding machines make it possible to manufacture vehicle wheels at small and medium-sized enterprises.

The technical result consists in reducing the complexity of manufacturing a vehicle wheel assembly and expanding the technological capabilities of production equipment.

The technical result is achieved by the fact that the metal rim of the vehicle’s wheel is part of the mold in the manufacture of the tire, is clamped and centered simultaneously with a figured ring between the two disks to form a cavity having the shape of a manufactured tire, and its outer surface has grooves that prevent the tire from turning relative to the rim.

The invention is illustrated by drawings. Figure 1 shows the mold for the manufacture of the wheels of the vehicle, and figure 2 shows the metal rim of the wheel, the tire of which is made of a polymer composite material.

Between the two disks 2 and 5, with the help of nuts 8 and the studs 9 located in the center and around the perimeter of the mold, the metal rim of the wheel 1 and the ring 3 are clamped and centered. An annular cavity A is formed into which, using the worm press 6, from the mixer 7 under

Unpolymerized polyurethane is pressurized. To ensure the quality of the polyurethane tire, a tube 4 is installed in the upper disk 5, through which air is forcibly removed and a vacuum is created in cavity A. To securely fasten the polyurethane tire and prevent it from turning relative to the wheel rim, the outer surface of the rim has grooves.

Information sources:

1. Invention of the wheel 1 Mikhail Vasiliev / Motor. - 2005 - April;

2. Patent No. 2133675 Russian Federation, IPC B60V 9/04. Wheel with internal suspension A.A. Yenayev, V.V. Mazur, N.N. Yatsenko. - No. 97102469/28; Stated 02/17/97; Publ. 07/27/99 Bull. No. 21.

Claims (1)

The mold for the manufacture of wheels made of elastic polymeric materials, made detachable, designed for injection molding with simultaneous forced removal of air from the cavity filled with polyurethane, characterized in that the metal rim of the vehicle wheel is part of the mold in the manufacture of the polymer tire, clamped and centered simultaneously with a figured ring between two disks, forming a cavity having the form of a manufactured tire.