RU2633044C1 - Harvesting vehicle converted for half-track - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: harvesting vehicle comprises a leading bridge and a controlled bridge, on which a half-track on rubber-reinforced tracks and controlled wheels, and shielding panels, respectively, are mounted. Each controlled wheel is equipped with a support, the base of which is made in the form of a ski and is closed at the top in the front part, in the motion direction, with a streamlined casing with sidewalls forming in the rear support part a gate into which the controlled wheel enters until the stop welded to the support base and to the sidewalls of the streamlined casing. The vertical projection of the controlled wheel axis divides the support base into two unequal parts, the front part of which is longer.

EFFECT: improved passability of the harvesting vehicle.

7 cl, 8 dwg

Description

The invention relates to mechanical engineering, in particular to harvesting vehicles, converted to a semi-caterpillar track, mainly for harvesting machines, energy, wheeled tractors, to increase their patency in areas with increased soil moisture.

Known sweeper, converted to a caterpillar track according to the patent No. 2497707, IPC B62D 55/04, containing the driving and steering axles, on which the chassis is mounted semi-tracked interchangeable and steered wheels, guard panels.

Also known is a wheeled tractor, converted to a caterpillar track according to patent No. 2497707, IPC B62D 55/04, containing a driving and steered axles, on which a semi-caterpillar interchangeable chassis and steered wheels are respectively mounted.

A common drawback of this sweeper and wheeled tractor, which has been converted to a semi-caterpillar track, is that the level of pressure on the soil from the steered wheels remains the same and, with increasing soil moisture, the steered wheels sink into the mud, preventing the sweeper or wheeled tractor from moving.

A transition device for mounting additional wheels on a vehicle’s steering axle is known according to the patent No. 2491176, IPC ВВВ 15/26, ВВВ 11/06, used in the conversion of a combine to a half-track operation, comprising a device in the form of a single-stage or multi-stage cylindrical, hollow spacer with flanges on its end surfaces.

This design reliably holds the additional wheel on the hub of the standard wheel, which allows to increase the bearing area of the steered wheels.

The disadvantage of this transition device is that it has a complex structure, and also the installation of an additional wheel is time-consuming, while the supporting surface of the steered wheels is insufficient with increasing soil moisture.

The purpose of the invention:

1. increase the bearing surface of the steered wheels;

2. reduce the time and complexity of installing the device to increase the bearing surface of the steered wheels;

3. to increase the patency of the means of the harvesting-transport, converted to a half-track;

4. reduce the harmful environmental effects on the soil.

This goal is achieved by the fact that each steered wheel is equipped with a support, the base of which is made in the form of a ski and is closed from above in the front part, in the direction of travel, with a streamlined casing with side walls forming the target in the rear part of the support, into which the steered wheel goes all the way, welded to the base of the support and the side walls of the streamlined casing, while the vertical projection of the axis of the steered wheel divides the base of the support into two unequal parts, of which the front part is longer.

In the cross section, the base of the support is made according to the Nycomed conchoid obtained by increasing the radius vector of each point of this curve by the same segment:

Where r is the radius vector;

ϕ ° is the angle of rotation of the radius vector;

“A” and “b” are given segments of constant length, with “b”> “a”, and the cross section of the streamlined casing in the front part, along the direction of movement, is made along the parabola y ² = 2px,

where p is the distance from the focus F to the directrix, called the parabola parameter.

In the side walls of the streamlined casing in the rear of the support in the area of the steered wheel, two coaxial holes for the lock are made.

At least two longitudinal grooves parallel to each other, similar to the grooves on the supporting surfaces of sports skis, are made on the base of the support.

The width of the base of the support can be made larger than the width of the rubber-reinforced caterpillar of the half-track.

On the inner surfaces of the protective shields of the left and right sides of the harvesting and transport means, for example, a combine harvester converted for half-track operation, two brackets with coaxial holes are welded for fastening the bearings of the steered wheels.

The distance between two brackets with coaxial holes welded on the inner surfaces of the guard panels on the left and right sides of the harvesting and transport equipment converted to a half-track is equal to the width of the support base plus the tolerance on the size of the width of the support base, for example, plus 2 mm.

Thus, the claimed tool harvesting, converted to a half-track, meets the criterion of "Novelty."

Signs that distinguish the claimed technical solution from the prototype in other technical solutions of this technical field are not identified, which allows us to conclude that the claimed means of cleaning and transport, converted to tracked, meets the criterion of "significant differences".

In FIG. 1 shows the proposed means of harvesting and transport, for example, a combine harvester, converted to a half-track, left view;

in FIG. 2 - the same, for example, a wheeled tractor, left view;

in FIG. 3 is a section AA of FIG. one;

in FIG. 4 is a section BB of FIG. 3;

in FIG. 5 - support, in a perspective view, rear view;

in FIG. 6 - support, in a perspective view, a top view of the abutment surface;

in FIG. 7 is a section BB of FIG. one;

in FIG. 8 is a view D of FIG. 7.

The means of harvesting and transport, converted to a half-track (Fig. 1, Fig. 2), contains a driving 1 and 2 controlled bridges, on which a half-track 3 is mounted respectively on rubber-reinforced tracks 4 and steered wheels 5, guard shields 6.

Each steered wheel 5 is equipped with a support 7, the base 8 of which is made in the form of a ski (Fig. 3) and is closed from above in the front part, in the direction of travel, with a streamlined casing 9 with side walls 10 forming a target 11 in the back of the support 7, into which includes the steered wheel 5 to the stop 12, welded to the base 8 of the support 7 and to the side walls 10 of the streamlined casing 9, while the vertical projection of the axis 13 of the steered wheel 5 divides the base 8 of the support 7 into two unequal parts, of which the front part is longer, "a ">" B ".

In cross section, the base 8 of the support 7 (Fig. 4) is made according to the Nycomed conchoid obtained by increasing the radius vector of each point of this curve by the same segment:

where r is the radius vector;

ϕ ° is the angle of rotation of the radius vector;

“A” and “b” are given segments of constant length, with “b”> “a”, and the cross section of the streamlined casing 9 in the front part, along the direction of movement, is made along the parabola y ² = 2px,

where p is the distance from the focus F to the directrix, called the parabola parameter.

In the side walls 10 of the streamlined casing 5 (Fig. 5) in the rear part of the support 7 in the area of the steered wheel 5 (Fig. 3) two coaxial holes 14 (Fig. 5) are made for the latch 15.

On the basis of 8 supports 7 (Fig. 6), at least two longitudinal, parallel to each other grooves 16 are made, similar to grooves on the supporting surfaces of sports skis.

The width "c" of the base 8 of the support (Fig. 4) can be made larger than the width "d" of the rubber-reinforced caterpillar 17 of the half-track 3 (Fig. 7), "c"> "d".

On the inner surfaces of the limited shields 6 of the left and right sides of the harvesting and transport means, for example, a combine harvester, converted to a half-track 3 (Fig. 7), two brackets 17 with coaxial holes 18 are welded for fastening the bearings 7 of the steered wheels 5.

The distance "e" between the two brackets 17 with coaxial holes 18, welded on the inner surfaces of the guard panels 6 of the left and right sides of the harvesting and transport equipment converted to a half-track, is equal to the width "c" (Fig. 4) of the base 8 of the support 7 plus tolerance Δc by the dimension “c” of the width of the base 8 of the support 7, for example, plus 2 m e = c + Δc.

To install the supports 7 on the steered wheels 5, a flat platform is selected and the supports 7 are installed in front of each steered wheel 5 so that the steered wheel 5 is opposite the alignment 11 formed by the side walls 10, the streamlined casing 9. The combine is moved (passing) forward to then, until the steered wheel 5 rests against the stop 12, welded to the base 8 of the support 7 and to the side walls 10 of the streamlined casing 9.

To exclude the possibility of the exit of the steered wheel 5 from the alignment 11, for example, when reversing, into the coaxial holes 14 made in the side walls 10 of the streamlined casing 9 in the area of the steered wheel 5, insert the latch 15 and lock it.

When moving a harvesting vehicle, for example a combine harvester, converted to a semi-caterpillar track 3, mounted on a drive axle 1 and steered wheels 5 mounted on a steered axle 2 and equipped with a support 7, the base 8 of which is made in the form of a ski and is closed from above in front , in the direction of travel, streamlined casing 9 with side walls 10, allows the support 7 to slide on the surface of the mud without cutting through the soil.

Due to the fact that the vertical projection of the axis 13 of the steered wheel 5 divides the base 8 of the support 7 into two unequal parts "a" and "b", of which the front "a" part is longer, "a"> "b" does not allow the support 7, the base 8 which is made in the form of skiing, digging into the soil.

The presence on the base 8 of the support 7 of at least two longitudinal grooves 16 parallel to each other, as well as the cross-section of the base 8 of the support 7 by the Nycomed conchoid, obtained by increasing the radius vector of each point of this curve by the same segment:

where r is the radius vector;

ϕ ° is the angle of rotation of the radius vector;

"A" and "b" are given segments of constant length, while "b"> "a" does not allow to unload the soil when turning the steered wheels 5 equipped with supports 7.

The implementation of the cross section of the streamlined casing 9 in the front part, in the direction of travel, along the parabola y ² = 2px,

where p is the distance from the focus F to the directrix, called the parabola parameter, eliminates the accumulation of soil on the surface of the streamlined casing 9 of the support 7.

The execution of the width "c" of the base 8 of the support 7 is greater than the width "d" of the rubber-reinforced track 4 of the half-track 3 "c"> "a" allows you to overlap the track from the rubber-reinforced track 4.

Removing the supports 7 from the steered wheels 5 is carried out in the reverse order: a flat platform is selected and the latch 15 is removed from the coaxial holes 14. The combine harvester moves (drive) backward until both steered wheels 5 come out completely from the alignment 11.

Protective shields 6 of the left and right sides are opened alternately, on the inner surfaces of which two brackets 17 are welded, with coaxial holes 8, a support 7 is installed between two brackets 17, the distance “e” between which is equal to the width “c” of the base 8 of the support 7 plus tolerance Δc to the width dimension “c” of the base 8 of the support 7, d = c + Δc, align the coaxial holes 18 of the brackets 17 with the coaxial holes 14 in the side walls of the streamlined casing 9 and insert the latch 15 into them, locking it.

After installing the supports 7 on the inner surfaces of the guard panels 6 are closed.

Claims (12)

1. Means of harvesting and transport, converted to a half-track, containing the driving and steered bridges, on which respectively a half-track is mounted on rubber-reinforced tracks and steered wheels, and guard shields, characterized in that each steered wheel is equipped with a support, the base of which is made in the form skis and is closed from above in front in the direction of travel with a streamlined casing with side walls forming a target in the back of the support, into which the steered wheel enters all the way, welded of the base support and the side walls of the streamlined casing, wherein the vertical projection of the axis of the steerable wheel support base divides into two unequal parts, the front part of which is longer. 2. The means of harvesting and transport, converted to a semi-caterpillar track according to claim 1, characterized in that the cross-section of the support base is made according to the Nycomed conchoid, obtained by increasing the radius vector of each point of this curve by the same segment:

where r is the radius vector; ϕ ° is the angle of rotation of the radius vector; " a " and " b " are given segments of constant length, while " b ">" a ", and the cross section of the streamlined casing in the front part, along the direction of movement, is made along the parabola y2 = 2px , where p is the distance from the focus F to the directrix, called the parabola parameter. 3. The means of harvesting and transport, converted to a semi-caterpillar track according to claim 1, characterized in that two coaxial openings for the lock are made in the side walls of the streamlined casing in the rear of the support in the area of the steered wheel. 4. The means of harvesting and transport, converted to a semi-caterpillar track according to claim 1, characterized in that at least two longitudinal grooves parallel to each other are made on the basis of the support, similar to grooves on the supporting surfaces of sports skis. 5. The means of harvesting and transport, converted to a half-track under item 1, characterized in that the width of the base of the support is made larger than the width of the rubber-reinforced track half-track. 6. The harvesting vehicle, converted to a half-track operation according to claim 1, characterized in that on the inner surfaces of the protective shields of the left and right sides of the harvesting-transport means, for example, a combine harvester converted to a half-track, two brackets with coaxial holes are welded for fastening the bearings of steered wheels. 7. The harvesting vehicle, converted to a half-track operation according to claim 1, characterized in that the distance between two brackets with coaxial holes welded on the inner surfaces of the guard panels on the left and right sides of the harvesting vehicle converted to a half-track operation is equal to the width of the base supports plus tolerance on the width of the base of the support, for example, plus 2 mm.

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