RU2808126C2 - Steering axle of rear wheels of self-propelled universal mower with variable track - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: steerable axle of the rear wheels of the self-propelled universal mower with a variable gauge includes a structurally connected axle beam, a rack, hydraulic cylinders (7), a towing device, rear steerable wheels and two retractable sliders (9). On the sliders (9) there are elements for adjusting the position of the rear wheels, including a system of levers (4 and 5), two side rods (6), two hydraulic cylinders (10) and a central steering rod (8), made telescopic, with provision of a mechanism spreading the wheels for moving the sliders (9) inside the beam by extending the rods of the hydraulic cylinders (10), which allows you to change the range of the wheel track width.

EFFECT: possibility of adjusting the track width for high-quality harvesting, expanding functionality, ensuring ease of use and increasing safety is provided.

1 cl, 2 dwg

Description

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

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

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

The design closest in design to the claimed invention is the design of the rear wheel axle of a self-propelled mower type M1240/1170 from MacDon [Information website - www.macdon.com. - Prospectus of the MacDon company. M series mowers, 2018].

The M1240/1170 type mower, made entirely of rolled sheet metal and made in the form of a regular rectangle, has a rear axle that includes a structurally connected axle beam, a stand, hydraulic cylinders and a towbar, while the rear wheels are made unsteerable (vane type).

This design of the rear wheel axle has disadvantages: limited functionality, high requirements for manufacturing technology; sensitive steering, which makes it difficult to control the self-propelled mower in general.

The objectives of the claimed invention are to provide the ability to regulate the track width for high-quality harvesting, expand functionality, ensure ease of use and increase safety.

The technical result is achieved by the fact that in the design of the steering axle of the rear wheels of a self-propelled universal variable-track mower, which includes a structurally connected bridge beam, a stand, hydraulic cylinders, a towbar, rear steered wheels, two retractable sliders, elements for adjusting the position of the rear wheels are mounted on the sliders , including a system of levers, two side rods, two hydraulic cylinders and a central steering rod, made telescopic, with the system providing a wheel extension mechanism for moving the sliders inside the beam due to the extension of the hydraulic cylinder rods, which allows you to change the wheel track width range.

Thanks to the described innovations in the transport position of the mower, in which the wheels are moved, the universal self-propelled mower is able to move on public roads unaccompanied, and in the working position, in which the wheels are spread apart, it is possible to collect a large windrow without running over it with the wheels.

The claimed invention is illustrated by the drawings shown in Fig. 12:

fig. 1 - steering axle of the rear wheels of a self-propelled universal mower with variable track, top and front view in a shifted state;

fig. 2 - steering axle of the rear wheels of a self-propelled universal mower with variable track, top and front view in an extended state.

The inventive design of the rear axle includes the following structural elements: 1 - rolling axis; 2 - stand; 3 - bridge beam; 4, 5 - lever; 6 - lateral thrust; 7 - hydraulic cylinders; 8 - steering rod, 9 - retractable slider, 10 - hydraulic cylinders (spreading the sliders), while structurally connected levers, side rods, hydraulic cylinders and a central steering rod are attached to the sliders.

The claimed invention works as follows. When the rods of one of the hydraulic cylinders 7 are extended, the lever 4 rotates, which drives the side rod 6, which, in turn, rotates the lever 5 together with the rack 2. Due to the steering rod 8, the rotation of the racks 2 relative to each other is ensured. The extension of the bridge is carried out due to the movement of sliders 9 in the bridge beam 3; after the bridge is extended or moved, the slider 9 is fixed on the bridge beam 3 due to hydraulic cylinders 10. The bridge design follows the topography of the field due to the rotation of the bridge beam 3 on the rolling axis 1.

The technical result consists in providing the ability to adjust the track width for high-quality harvesting, expanding functionality, ensuring ease of use and increasing safety.

Claims (1)

A steerable axle of the rear wheels of a self-propelled universal variable-gauge mower, which includes a structurally connected bridge beam, a stand, hydraulic cylinders, a towbar, rear steered wheels, two retractable sliders, characterized in that elements for adjusting the position of the rear wheels are mounted on the sliders, including a system of levers, two side rods, two hydraulic cylinders and a central steering rod, made telescopic, with the wheel extension mechanism providing movement of the sliders inside the beam due to the extension of the hydraulic cylinder rods, which allows you to change the wheel track width range.