Hingeless rubber-reinforced track for harvester

FIELD: transport.

SUBSTANCE: invention relates to transport machine building. Hingeless rubber-reinforced track for harvester contains metal reinforcing elements made integral with track wheel guides and set at certain distance from each other throughout the length. Steel-wire cord is made as cable and wraps reinforcing elements from outside. Steel-wire cord and reinforcing elements are cured together in rubber into single endless chain with treads and bearing surface. On the bearing surface under each tread throughout track length, longitudinal projections are made at the edges of which there are transversal grousers. The grousers have chamfer towards track side faces. The bearing surface between longitudinal projections in its cross-section is made convex away from reinforcing element along ellipse curve and forms ellipsoid cavity throughout track length in longitudinal direction of track chain.

EFFECT: improvement of harvester flotation ability and decrease in destruction soil covering due to making track bearing surface concaved along ellipse curve.

2 cl, 4 dwg

The invention relates to transport machinery, namely, chassis systems cleaning machines with hingeless caterpillars, mainly Russinovich and forage harvesters.

Known hingeless caterpillar vehicles copyright certificate №650876 representing a monolithic reinforced elastic tape containing traction metallotherapy frame consisting of two sections located between the fastening parts for fastening to metallitron inner lining with elements of the gearing and the outer lateral lining, a fabric strip with two sides of Metallurgov between transverse plates, the supporting part caterpillars in the form of an endless strip of high-strength microporous rubber, of trapezoidal cross-section with the long privatkundenbank to tuck the rubber.

According to the authors, "the presence of air in the pores of the support surface caterpillars provides uniform distribution of the specific ground pressure, better traction with the ground".

All this is true for ideal conditions.

Unfortunately, the work vehicle, as well as the harvesting machine is in difficult conditions with the presence of dust and dirt, which "score" pores "high-strength microporous rubber", and it becomes solid, justkeys the ensuing consequences.

In addition hingeless caterpillar vehicles copyright certificate №650876 very sophisticated and time-consuming to manufacture.

Also known hingeless caterpillar vehicles (drawing RUBBER GRAWLER 20040831 company "Bridgestone")containing the metal reinforcing elements made integral with napraviteley track rollers and placed at a certain distance from each other in length, between which holes for teeth sprocket, steel cord in the form of a rope, covering the reinforcing elements from the outside, vulcanized in rubber in a single endless belt having a running track and a support surface with the lug.

One of the deficiencies of these caterpillars is that when the movement of the harvesting machine in conditions of high soil moisture from under the tracks of the liquid is squeezed out dirt, water, air and soil, forming longitudinal ridges on each side of the tracks, forming a deep rut.

All this is compounded by the presence in the feed caterpillars through holes for teeth sprocket, through which also squeezed liquid mud, water, air and soil.

All this contributes to the destruction of soil cover and the formation of deep ruts.

Known and hingeless caterpillar harvesting machine according to application No. 2008119860/ II (023279), aderasa the metal reinforcing elements, made integral with napraviteley track rollers and placed at a certain distance from each other in length, between which holes for teeth sprocket, steel cord in the form of a rope, covering the reinforcing elements from the outside, vulcanized in rubber in a single endless belt having a running track and a support surface with the lug, where at each treadmill the entire length of the caterpillar is made of longitudinal ribs, and between the edges which are transverse lug, the height of the transverse lugs located between the longitudinal protrusions is less than their height, and the side lugs are beveled to the side sides of the tracks, while in the longitudinal protrusions on the depth of their height made transverse grooves, which are evenly spaced across the entire length of the larvae at a distance from each other equal to the step caterpillars.

The disadvantage of this caterpillar is the fact that the motion of the harvesting machine in conditions of high humidity from beneath the caterpillars also squeezed liquid mud, water, air and soil, forming a deep rut.

All this is compounded by the presence in the feed caterpillars through holes for teeth sprocket, through which also squeezed liquid mud, water, air and soil. All this contributes to the destruction of soil pokr is VA and the formation of deep ruts.

The purpose of the invention is to reduce the degree of destruction of the soil cover, to improve the patency of the harvesting machine in conditions of high soil moisture by creating a hydrostatic shutter tracked under the tape, providing static equilibrium of the soil in the transverse plane, which reduces the intensity of extrusion of the soil on the edge of the caterpillars, reducing the height of the longitudinal ridges and the depth gauge.

This objective is achieved in that the bearing surface between the longitudinal protrusions in the transverse cross-sectional concave in the direction of the reinforcing element according to ellipse curve, forming in the longitudinal direction of the crawler belt symmetrically to its axis ellipsoidal cavity along the length of the caterpillar. The bevel at the lugs to the sides of the caterpillar is the magnitude of the angle "α", the cotangent is equal to:

where is the width of the caterpillar;

With the width of the cross section of the supporting surface caterpillars between the longitudinal protrusions;

H - the height of the treadmill caterpillars from the supporting surface.

Thus, the claimed caterpillar hingeless rubber harvesting machine meets the criterion of "Novelty."

The features distinguishing the claimed technical solution to the prototype, in other technical solutions in this field of technology have been identified that allows the transaction is to be output, what is claimed caterpillar hingeless rubber harvesting machine meets the criterion of "substantial differences".

Figure 1 shows the proposed caterpillar, section a-a; figure 2 - same, ventral view; figure 3 is a cross section of the furrow after the passage of the caterpillar RUBBER GRAWLER 20040831 company "Bridgetown"; figure 4 is a cross section of the furrow after the passage of the proposed caterpillars.

Caterpillar hingeless rubber harvesting machine includes a metal reinforcing elements 1 made integral with napraviteley 2 track rollers and placed at a certain distance from each other along the length of the steel cord in the form of a cable 3, covering the reinforcing elements 1 outside vulcanized in rubber 4 in a single endless belt having a running track 5 and the support surface 6, where at each treadmill 5 over the entire length of the caterpillar is made of longitudinal protrusions 7, the edges of which are transverse lug 8 having a bevel to the sides.

Bearing surface 6 between the longitudinal projections 7 in the transverse cross-sectional concave in the direction of the reinforcing element 1 on ellipse curve 9, forming in the longitudinal direction of the crawler belt symmetrically to its axis ellipsoidal cavity 10 along the length of the caterpillar. The bevel at the lugs 8 to the sides of the caterpillars has ve is ichino angle "α", the cotangent is equal to:

where is the width of the caterpillar;

With the width of the cross section of the supporting surface 6 of the tracks between the longitudinal protrusions 7;

H - the height of the treadmill 5 caterpillars from the supporting surface 6.

When the movement of the harvesting machine caterpillar goes around idler its driving system and a driving wheel (not shown) actuates the caterpillar through the elements of the gearing, which serve as reinforcing elements 1.

On the ground the caterpillar rests through the bearing surface 6, the lug 8, and the longitudinal protrusions 7. Track rollers (not shown) roll on treadmills 5, pressing the caterpillar to the soil, providing movement of the harvesting machine. Napraviti 2, which are made integral with the reinforcing elements 1, keep track rollers on the treadmill 5.

The presence of the metal cords in the form of a cable 3, and the reinforcing elements 1, vulcanized into the rubber 4 at the same time, it retains its strength and ensures reliable operation of the harvesting machine.

Due to the fact that the bearing surface between the longitudinal projections 7 in the transverse cross-sectional concave in the direction of the reinforcing element 1 on ellipse curve 9, forming in the longitudinal direction of the crawler belt symmetrically to its axis ellipsoidal cavity 10 along the entire length of the belt is created g is grotticelli the shutter under track tape ensure static equilibrium of the soil in the transverse plane, which reduces the intensity of extrusion of the soil on the edge of the caterpillars, reducing the height of the longitudinal rollers 11 (figure 3 and figure 4) and the depth gauge.

The bevel at the lugs 8 to the sides of the caterpillar to the magnitude of the angle "α", the cotangent is equal tohelps to reduce the destruction of soil N when turning harvesting machine, and also allows you to choose the optimal tilt angle at lug 8, depending on the parameters of the caterpillar.

The use of the proposed caterpillars hingeless rubber harvesting machine will reduce the degree of destruction of the soil cover, to improve the patency of the harvesting machine in conditions of high soil moisture by creating a hydrostatic shutter tracked under the tape, providing static equilibrium of the soil in the transverse plane, which reduces the intensity of extrusion of the soil on the edge of the caterpillars, reducing the height of the longitudinal ridges and the depth gauge.

1. Caterpillar hingeless rubber harvesting machine, comprising a metal reinforcing elements made integral with napraviteley track rollers and placed at a certain distance from each other along the length of the steel cord in the form of a cable covering reinforcing ale the options on the outside, vulcanized at the same time in the rubber in a single endless belt having a running track and a support surface on which each treadmill the entire length of the caterpillar is made of longitudinal ribs, the edges of which are transverse lug having a bevel to the sides of the caterpillar, characterized in that the bearing surface between the longitudinal protrusions in the transverse cross-sectional concave in the direction of the reinforcing element according to ellipse curve, forming in the longitudinal direction of the crawler belt symmetrically to its axis ellipsoidal cavity along the length of the caterpillar.

2. Caterpillar hingeless rubber harvesting machine according to claim 1, characterized in that the bevel at the lugs to the sides of the caterpillar is the magnitude of the angle "α", the cotangent is equal to
,
where is the width of the caterpillar;
With the width of the cross section of the supporting surface caterpillars between the longitudinal tabs;
H - the height of the treadmill caterpillars from the supporting surface.