Running gear with reinforced-rubber friction-engagement caterpillar track

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed running gear comprises drive and gear wheels with cylindrical treads and reinforced-rubber caterpillar track running there over, reinforcing elements being made integral with guides spaced apart over the length. Steel cable embraces reinforcing elements from outside, said elements vulcanised in rubber to make endless track with treads and support surface with grousers. Track reinforcing element is made of strip-like resilient material of spring steel with ends bent in one side while mid part being bent towards said bend ends. Cylindrical tread of drive wheel features larger width than said cylindrical tread by double clearance between inner side of aforesaid guide and cylindrical tread lateral surface.

EFFECT: increased engagement between track and drive wheel cylindrical tread, decreased tension of said track.

2 cl, 6 dwg

The invention relates to transport machinery, and in particular to systems running with rubber caterpillar friction gearing, mainly for agricultural tractors and harvesting machines.

Known system chassis with rubber caterpillar frictional engagement used by the firm Class (Germany) on the harvester Commandor CS 116 (see Power Farming. January, 1988, p.7), which consists of leading, guiding wheels and track rollers between them, covered rubber caterpillar which is actuated by means of the frictional force.

The main drawback of this system is running in heavy working conditions is a slip of the drive wheel relative to the rubber tracks due to the lack of coupling between them, which requires considerable tension caterpillars.

Also known system chassis with rubber caterpillar frictional engagement produced and used by the company Arko - Challenger tractors Challenger (., Prospects for the development of the tractor. Ph.D., Professor Weltzin N.A. JSC NATALIE S. 420, Fig.7).

One of the drawbacks of the system chassis with rubber caterpillar frictional engagement of Challenger tractors are significant, up to 22 tons, the tension force of the caterpillars and the need to strictly control order under which the actual content of the required effort, transmitted from the drive wheel and rubber track.

The purpose of the invention is to increase the adhesion rubber tracks with the rim of the drive wheel suspension system with rubber-armored caterpillar frictional engagement with a simultaneous decrease in the tension of the caterpillar.

This objective is achieved in that the reinforcing element rubber tracks are made of elastic material in the form of a strip of spring steel bent to one side ends, a middle portion which is curved toward the bent ends of conchoid of Nicomedia obtained when increasing the radius vector of each point of this curve on the same segment:

$$r=\frac{b}{\cos \phi \circ }\pm a$$

where r is the radius - vector;

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

"a" and "b" is defined segments of constant length, while "b">.

The width of the cylindrical rim of the drive wheel is made larger than the width of the cylindrical rim of the idler on the double a gap between the inner side of the sender and the side of the cylindrical rim of the idler at the optimum tension of the rubber caterpillars.

Thus, the claimed system chassis with rubber Palmer is itsey frictional engagement 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 leads to the conclusion that the system is running with rubber caterpillar frictional engagement meets the criterion of "substantial differences".

Figure 1 shows the proposed system chassis with rubber caterpillar friction gearing, left side view; figure 2 is a reinforcing element, a General view in a perspective view; figure 3 is a section a - a of Fig 1, Fig 4 - a section b-b figure 1; figure 5 - cross section C-C figure 1; figure 6 is a General view in the context of rubber tracks from tracks in a perspective view.

System chassis with rubber caterpillar friction engagement (figure 1) contains a leading 1 and guide 2 wheels with rims 3 and 4 has a cylindrical shape and covering their rubber caterpillar 5 containing reinforcing elements 6 (2), made in one with napraviteley 7 (figure 3, figure 4)placed at a certain distance from each other along the length of the steel cord in the form of a cable 8 (figure 3, figure 4, figure 5, 6), covering the reinforcing elements 6 on the outside, vulcanized for one in rubber 9 in a single tape having a Jogging track 10 (3, figure 4, figure 5) with the lug 12.

The reinforcing element 6 rubber tracks 5 made of elastic material in which the IDA strip of spring steel bent to one side ends 13, the middle part 14 (figure 2) which is curved toward the bent ends 13 to conchoid of Nicomedia obtained when increasing the radius vector of each point of this curve on the same segment:

$$r=\frac{b}{\cos \phi \circ }\pm a$$

where r is the radius - vector;

φ° is the angle of rotation of the radius-vector; "a" and "b" is defined segments of constant length, while "b">.

The width "D" (Fig 3) cylindrical rim 3 of the drive wheel 1 is made greater than the width "E" (figure 5) cylindrical rim 4 guide 2 wheels on the double gap "S" between the inner side of the guiding equipment 7 and the side of the cylindrical rim 4 guide 2 wheels at the optimum tension rubber tracks 5 (figure 1).

When the vehicle equipped with the system running with rubber caterpillar frictional engagement, for example, an agricultural tractor or harvester, rubber caterpillar 5 (figure 5) encircles the cylindrical rim 4 guide 2 wheels, and a cylindrical rim 3 leading 1 wheel, which drives the rubber caterpillar 5 (figure 3) due to the friction surface of the treadmill 10 with a cylindrical rim 3 (4, 6), and bent the aq side ends 13 with napraviteley 7, which are pressed onto the lateral surface of the cylindrical rim 3 of the drive wheel 1 (Fig 3) due to the fact that the middle portion 14 of the reinforcing element 6 (figure 2) is curved toward the bent ends 13 to conchoid of Nicomedia obtained when increasing the radius vector of each point of this curve on the same segment:

$$r=\frac{b}{\cos \phi \circ }\pm a$$

where r is the radius vector;

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

"a" and "b" is defined segments of constant length, while "b">"and"under the influence of a tension of the endless rubber tracks 5 and weight of the vehicle together with rubber 9 and treadmills 10 reinforcing elements 6 will stand up and take cross-sectional shape of the outer surface of the cylindrical rim 3 of the drive wheel 1, "forcing" curved ends 13 with napraviteley 7 to pull over to the side surface of the cylindrical rim 3 of the drive wheel 1.

After the termination of the engagement of the cylindrical rim 3 of the drive wheel 1 with rubber caterpillar 5 reinforcing element 6 together with rubber 9 and treadmills take 10 to its original position (figure 4), and curved ends 13 depart from the lateral surface of the cylindrical rim 3 of the drive wheel 1.

EPA the that the width "D" of the cylindrical rim 3 of the drive wheel 1 (Fig 3) is made greater? than the width "E" of the cylindrical rim 4 (figure 5) guide 2 wheels on the double gap "S" between the inner side of the guiding equipment 7 and the side of the cylindrical rim 4 guide 2 wheels at the optimum tension rubber tracks 5, the reinforcing element 6 together with rubber 9 and treadmills 10 will also stand up and take cross-sectional shape of the outer surface of the cylindrical rim 4 guide 2 wheels, but curved ends 13 with napraviteley 7 will not pull over to the side surface of the cylindrical rim 4 guide 2 wheels.

Ground rubber caterpillar 5 based via the supporting surface 11 and lugs 12 (figure 3, figure 4, figure 5).

The leading 1 and guide 2 wheel rolling on treadmills 10 (4, 6), pressing rubber caterpillar 5 to the soil, providing a moving vehicle such as an agricultural tractor or harvesting machine.

The presence of the metal cords in the form of a cable 8, as well as reinforcing elements 6, the middle part of which is made according to conchoid of Nicomedia, provide additional force clutch cylindrical rim 3 of the drive wheel 1 with rubber caterpillar 5 with preservation of e is strength, and between the guides 2 and the leading 1 wheels at the base under the rubber caterpillar 5 is formed conchoidal space, creating hydrostatic shutter, which reduces the intensity of extrusion of the soil on the edge of the caterpillar.

Use in systems running we offer rubber tracks with frictional gearing will increase the grip rubber tracks with the rim of the drive wheel system of the chassis of the vehicle and to reduce the tension on the rubber caterpillars.

1. System chassis with rubber caterpillar friction gearing, containing lead and guide wheel with a cylindrical rim and covering their rubber caterpillar, including reinforcing elements made in one with napraviteley placed at a certain distance from each other along the length of the steel cord in the form of a rope, covering the reinforcing elements from the outside, vulcanized for one in rubber in a single endless belt having a running track and a support surface with the lug, wherein the reinforcing element rubber tracks are made of elastic material in the form of a strip of spring steel bent in one direction ends, the middle portion of which is curved toward the bent ends of conchoid of Nycomed received the ri increase of the radius vector of each point of this curve on the same segment:

where r is the radius - vector;
φ° is the angle of rotation of the radius-vector;
"a" and "b" is defined segments of constant length, while "b">"a".

2. System running with residualincome caterpillar friction gear according to claim 1, characterized in that the width of the cylindrical rim of the drive wheel is made larger than the width of the cylindrical rim of the idler on the double a gap between the inner side of the sender and the side of the cylindrical rim of the idler at the optimum tension of the rubber tracks.