RU2802255C1 - Steering axle of rear wheels of self-propelled all-purpose cutter with variable track - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: controlled axle of the rear wheels of the self-propelled all-purpose cutter with variable track includes a structurally connected axle beam (3), a rack (2), two hydraulic cylinders, a towing device, rear steered wheels, two retractable sliders installed in the axle beam (3). Retractable sliders are equipped with elements for adjusting the position of the rear wheels: a system of levers, two side rods, two hydraulic cylinders, fixing rods and a telescopic central steering rod to enable rear wheel control.

EFFECT: expansion of functionality, simplification of layout and design, method for installation and dismantling, improvement of maintainability characteristics and ease of use and increase of reliability due to the possibility of rear wheel control.

1 cl, 4 dwg

Description

The invention relates to the field of agricultural engineering, and specifically to universal self-propelled mowers.

Self-propelled mowers of companies such as MacDon, AGCO, CNH, etc., similar in design to the rear wheel axle, are known [1. Information website - www.macdon.com. - Prospectus of MacDon. M series mowers, 2018. 2. Information website - www.newholland.com. - New Holland SPEEDROWER SELF-PROPELLED WINDROWERS 2018 brochure.

3. Information website - www.agcocorp.com. - MF WR 9800 Series prospectus, 2018].

Closest in design to the claimed invention is the design of the axle of the rear wheels of the self-propelled mower type Ml240/1170 company "MacDon" [Information website -www.macdon.com. - Prospectus of MacDon. M series mowers, 2018].

The mower type M1240/1170, made entirely of sheet metal and made in the form of a square, has a rear axle that includes a structurally connected axle beam, a rack, hydraulic cylinders and a towing device, while the rear wheels are made non-steerable (vane type).

This design of the rear wheel axle has disadvantages: limited functionality; high requirements for manufacturing technology; the turning radius is larger than that of the prototype; complex layout, design and technology of installation and dismantling; unsatisfactory characteristics of maintainability, ease of use and reliability; the complexity of controlling the mower as a whole.

The objective of the claimed invention is to expand the functionality, simplify the layout and design, technology of installation and dismantling, improve maintainability characteristics, ease of use and increase reliability by providing the ability to control the rear wheels.

The technical result is achieved by the fact that in the design of the controlled axle of the rear wheels of the self-propelled universal mower with a variable gauge, which includes a structurally connected axle beam, a rack, two hydraulic cylinders, a towing device, rear steerable wheels, two retractable sliders installed in the axle beam, on retractable sliders mounted elements for adjusting the position of the rear wheels: a lever system, two side rods, two hydraulic cylinders, locking rods and a central steering rod, made telescopic, to enable control of the rear wheels.

The claimed device is illustrated by the drawings shown in Fig. 1-4:

fig. 1 - controlled axle of the rear wheels of a self-propelled universal mower with a variable gauge, top view in a shifted state;

fig. 2 - controlled axle of the rear wheels of a self-propelled universal mower with a variable gauge, front view in a shifted state;

fig. 3 - controlled axle of the rear wheels of a self-propelled universal mower with a variable gauge, top view in the extended state;

fig. 4 - controlled axle of the rear wheels of a self-propelled universal mower with a variable gauge, front view in the extended state.

The claimed design of the rear axle includes the following structural elements: 1 - rolling axis; 2 - rack; 3 - bridge beam; 4 - lever, 5 - lever; 6 - lateral thrust; 7 - hydraulic cylinders; 8 - steering rod, 9 - retractable slider, 10 - fixing rod, while the rolling axis 1 fixes the axle beam 3 on the machine body and allows the axle beam to roll across the axis, rack 2, lever 4, lever 3, side rod 6, hydraulic cylinder 7 are interconnected and mounted on a retractable slider 9, retractable sliders 9 are installed in the beam of the bridge 3 and are fixed on it with locking rods 10, the synchronization of the movement of the sliders 9 is carried out due to the rigid coupling of the steering rod 8 located between them.

The claimed invention works as follows. When the rods of one of the hydraulic cylinders 7 (see Fig. 1, 4) are extended, the lever 4 is rotated, which drives the side link 6, which, in turn, rotates the lever 5 together with the rack 2 (see Fig. 1). Due to the thrust of the steering 8 (see Fig. 3) provides synchronous rotation of the racks 2 relative to each other (see Fig. 1). The extension of the bridge is carried out by moving the sliders 9 along the beam of the bridge 3 (see Fig. 1, 3); after the extension or displacement of the bridge, the slider 9 is fixed on the beam of the bridge 3 due to the locking rods 10 (see Fig. 3, 4). The design of the bridge copies the relief of the field due to the rotation of the beam of the bridge 3 on the rolling axis 1.

The technical result consists in solving the problem of the invention, namely: expanding the functionality, simplifying the structural layout, mounting and dismounting technology, improving maintainability, ease of use and increasing reliability.

Claims (1)

Controlled axle of the rear wheels of a self-propelled universal mower with a variable gauge, which includes a structurally connected axle beam, a rack, two hydraulic cylinders, a towing device, rear steered wheels, two retractable sliders installed in the axle beam, characterized in that position control elements are mounted on the retractable sliders rear wheels: a lever system, two side rods, two hydraulic cylinders, fixing rods and a central steering rod, made telescopic, to ensure the ability to control the rear wheels.