RU2410225C2 - Procedure for reconditioning wheels of vehicle - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: procedure consists in detection of defect on internal and external surface of wheel. Upon detecting the defect on internal surface of the wheel a device for plastic deformation in form of at least one semi-ring is arranged on internal surface of the wheel and is effected with thrust. When a defect is detected on external surface the said device is laid over external surface of the wheel and is compressed. The end of the process corresponds to absence of a gap between working surface of the device for plastic deformation and reconditioned surface.

EFFECT: simplified process of reconditioning.

3 cl, 2 dwg

Description

The claimed technical solution relates to mechanical engineering and can be used in the repair of vehicles, namely trucks and cars.

Wheel repair of vehicles is a technological process that ensures the elimination of damage to parts (cracks, breaks, spalls, holes, etc.) or the restoration of their initial landing without restoring their nominal size. This repair is carried out including the method of plastic deformation.

Plastic deformation repair of parts is one of the most common repair methods used for straightening dents, bending, twisting, changing the seating dimensions of worn parts.

It is known (www.remontauto.ru), trying to level the wheel knocked out with a sledgehammer. If the material is sufficiently plastic, for example, steel 3, then the margin of available strength is high, and a similar operation can be carried out with certain success a certain number of times, achieving very satisfactory results.

The disadvantage of this method is that the residual deformation will increase, although not very soon, but will reach a critical point, besides, the force when struck with a sledgehammer is not possible to control and you can overdo it, getting others instead of one problem.

A known method of editing wheels of automobile wheels (www. Inter-pal.narod.ru) using the device manufactured by Inter-Pal-O "Diskoprav UPD-2", release according to TU 45-001-48134017-01, which consists in plastic deformation of the curved sections of the base of the rim flange and restoration of the shape in the matrix, in which the disk is mounted with the curved section on the matrix, is attracted by the punch lever and the arm pulls the curvature.

This method is not convenient, because the effort of a person’s hand is not regulated, participation in the process of adaptation and human hands do not comply with safety requirements, moreover, it is impossible to correct the wheels and rims of trucks in this device, because the effort of a person’s hand to correct them will not be sufficient.

There is a known method in which the wheel to be restored is installed on the cradle rollers, then a fixing element is installed, a T-shaped mandrel is inserted into the hole in the disk, then a center is inserted on the mandrel on the other side, which tighten with a nut, and the rack in which the holder with indicators is installed. The wheel is pulled by pads. A support is installed inside the wheel, a jack is mounted on it and fixed. The wheel is scrolled on rollers, fixing indicators on indicators and identifying defects on controlled surfaces, or a template is applied made with a radius and repeating the controlled surface, the deformed surface is heated with a gas burner or spirit lamp, and a jack is fixed on it. Defects are mainly dents that are removed with a jack by means of pressure. The elimination of defects and their absence is again controlled by indicators or a template, the jack can be equipped with nozzles of various configurations, the use of which depends on the type of defect and the configuration of the defective surface.

The above method has disadvantages, as due to the fact that the support for the jack is installed inside the wheel, and the jack acts on the opposite side of the surface, that is, it is possible to give the wheel an oval shape that will need to be displayed in other, more complex ways, moreover, indicator control also complicates the process of straightening the wheel.

The objective of the proposed technical solution is to simplify the process, the use of technical means that are simple to manufacture and use, because Wheel and wheel restoration work is often carried out in small tire shops.

A method of repairing a vehicle’s wheels, in which a defect is detected, the surface is restored by plastic deformation, the elimination of a defect is detected when a defect is detected on the inner surface of the wheel, a plastic deformation device in the form of at least one half-ring is mounted on the inner surface of the wheel and is acted upon by surprise, and upon detection of a defect on the outer surface, said plastic deformation device is applied to the outer surface to forest and affect compression. In addition, the process is completed in the absence of a gap between the working surface of the device for plastic deformation and the restored surface. In addition, to accelerate the recovery process, force is added by a percussion mechanism, which is used as a sledgehammer or hammer.

The method of restoring the wheels of a vehicle is as follows: they inspect the wheel, visually determine the presence of defects, mainly dents on the outside and, or on the inside diameter of the wheel. Then they choose the method of installing the wheel, it depends on the surface on which the defect is found, on the type and depth of the defect, etc., it can be a machine, turning, tire fitting or another, in the end the wheel can simply be laid on some surface : wooden, rubber or other.

The plastic deformation device is shown in FIG. 1, FIG. 2, where: 1 — half rings, 2 — inner diameter, d, 3 — outer diameter, D, half rings of FIG. 1 have, in addition to all the listed surfaces, antennae 4.

A plastic deformation device is applied to the surface on which the defect is detected (Fig. 1, Fig. 2), which is at least one ring 1, in most cases two half rings are used, one half ring is directly at the defect site, the other at the opposite side of the wheel (not shown), as if covering the wheel in a non-closed ring, the inner diameter d of the resulting ring should be equal, in the end, to the outer diameter of the wheel. Gradually compress the half rings 1, directing them towards each other along arrows B, for example, by means of a threaded connection of the antennae 4 (Figure 1) or the cams of the machine chuck along arrows A. If it is necessary to correct the bulge on the inner surface of the wheel, then impose a defect on the inner surface the aforementioned plastic deformation device in the form of a half-ring 1, the outer diameter D of the obtained non-closed ring must be equal to the inner diameter of the wheel and act counter-clockwise until the working surface It touches a correctable surface without gap. The quality control of the work performed is checked in some cases for the absence of a gap between the working surface of the device and the reconstructed surface, or at the end of the editing process, the control is performed by an indicator or a template. During dressing, to accelerate the process, you can add force to the impact mechanism, such as a sledgehammer or hammer.

The inventive method is based on the plastic return of the curved section to its original position. Due to the fact that a device is used whose working surface repeats the surface being restored, there is no likelihood of receiving other defects on the surface, moreover, in the process of correcting such a defect as a dent, wheel straightening also occurs, providing the configuration of the circle if it was broken during operation wheels.

And what is important, when using the proposed method, there is no need to use control tools directly in the process, but only at the end of the process, this simplifies the method and reduces its cost.

Claims (3)

1. A method of restoring a vehicle’s wheels, including detecting a defect on the inner and outer surfaces of the wheel, restoring the surface by means of a plastic deformation device, the working surface of which follows the profile of the surface being restored, and controlling the elimination of the defect, characterized in that if a defect is detected on the inside the surface of the wheel, a plastic deformation device, in the form of at least one half-ring, is mounted on the inner surface the wheels act contrary, and when a defect is detected on the outer surface, the aforementioned device for plastic deformation is applied to the outer surface of the wheel and is affected by compression. 2. The method according to claim 1, characterized in that the process is completed in the absence of a gap between the working surface of the device for plastic deformation and the restored surface. 3. The method according to claim 1, characterized in that in order to accelerate the recovery process, they act by a percussion mechanism, which is used as a sledgehammer or hammer.

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