RU2504621C1 - Work tool of bucket wheel excavator - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: work tool of bucket wheel excavator includes work wheel in the form of a drum mounted on platform rotating around horizontal axis, with buckets consisting of cutting edges, side and rear walls; the buckets are attached to the work wheel on joints by a centrepoint suspension scheme; balance beams are identical in structure and process properties, feature spring-elastic extension pads adjoining the drum and are pressed to the internal side of the drum by a rolled semiflexible band.

EFFECT: expanded process usability of work tool of bucket wheel excavator.

2 cl, 1 dwg

Description

The invention relates to earthmoving equipment and extends the technological capabilities of the working body of a rotary excavator through use in the city, at the cottage and / or farm plots. Known working body of a bucket wheel excavator / cm. author testimonial. No. 1386035 (class E02F 3/24) dated 26. 11. 1984 /, including an impeller mounted on a moving platform - a rotary boom on a tracked chassis with the possibility of rotation on a horizontal or inclined axis in the form of a cylindrical drum with buckets located on its periphery with cutting edges, side and rear walls.

Structurally and technologically, the working body of a rotary excavator - prototype is unreasonably complicated, which narrows the technological capabilities of its use in the city, at the cottage and / or farm plots.

The noted drawback is eliminated by the fact that in the working body of a rotary excavator, which includes an impeller in the form of a cylindrical drum mounted on a movable platform with the possibility of rotation around a horizontal axis with buckets with cutting edges, side and rear walls located on its periphery, the buckets are pivotally mounted on the impeller according to the scheme of the balancing suspension, structurally and technologically identical in execution of the balancers having spring, continuation substrates adjacent to the drum, with an internal the sides of the wheel drum are drawn to the drum by an elastic duct tape rolled up into a roll. In this case, the tape rolled up into a roll can be made in the form of a pneumatic or fluid-filled cavity or in the form of an electrically insulated metal strip having EMF connection contacts at its ends.

The working body of a rotary excavator proposed by the technical solution is illustrated by a drawing.

The working body of a bucket wheel excavator includes an impeller 1 mounted on a movable platform with the possibility of rotation around a horizontal axis in the form of a cylindrical drum with buckets 2 located on its periphery with cutting edges, side and rear walls. Buckets 2 are mounted on the impeller 1 pivotally (Fig. 3 shows the hinge axis 3 conventionally) according to the balancer suspension scheme. Structurally and technologically identical in design, the balancers 4 (one of the balancers 4 is conventionally shown in Fig.), Having spring extension substrates adjacent to the drum, are pressed onto the drum from the inside of the wheel drum by an elastic-flexible tape rolled up (not shown in Fig. ) At the same time, the tape rolled up into a roll can be made in the form of a pneumatically or hydrofilled cavity or in the form of a metal strip having EMF connection contacts at its ends.

Without feeding the working substance under pressure into the pneumo- or water-filled cavity of the tape rolled into a roll, or without turning on the EMF at the contacts of an electrically insulated metal strip rolled into a roll, the declared working body of a bucket wheel excavator operates with buckets 2 as open as possible, which is acceptable during operation of a bucket wheel excavator on loose soils, sand, snow, etc. On denser and stronger soils, the opening of buckets 2 on the impeller 1 is regulated in the direction of reduction due to the supply of pressurized working substance into the pneumatic or water-filled cavity of the tape rolled into a roll, or by switching on the EMF on the contacts of an electrically insulated metal strip rolled into a roll.

The adjustment of the opening of the buckets 2 on the impeller 1 is ensured by the balancing suspension of the buckets 2 on the 3 axles of the hinges and controlled (from the pneumatic or hydraulic system, electrically controlled), the balancers are pressed to the inner side of the wheel drum by radially increasing ribbons of various designs, rolled up into a roll.

The claimed technical solution extends the technological capabilities of a bucket wheel excavator in the city, at the cottage and / or farm plots.

The claimed working body can be mounted and used as a bucket wheel excavator on a movable platform of the author’s bridge / cm. Patent No. 2298304 (class A01B 49/00) dated 04/04/2005 /.

Thus, the proposed technical solution, according to the applicant, is new, has an inventive step and is industrially applicable.

Claims (2)

1. The working body of a bucket wheel excavator, including an impeller mounted on a movable platform with the possibility of rotation around a horizontal axis, in the form of a cylindrical drum with peripheral buckets with cutting edges, side and rear walls, characterized in that the buckets are pivotally mounted on the impeller according to the scheme balancer suspension, structurally and technologically identical in design, balancers having spring extension substrates adjacent to the drum from the inside of the wheel drum to elastically pressed against the drum tape rolled into a roll. 2. The working body of the bucket wheel excavator according to claim 1, characterized in that the tape rolled up into a roll can be made in the form of a pneumatic or fluid-filled cavity or in the form of an electrically insulated metal strip having EMF connection contacts at its ends.

Images