RU2229997C1 - Vehicle support-and-running member - Google Patents

Abstract

FIELD: transport engineering; cross-country vehicle propulsion unit. SUBSTANCE: proposed support-and-running member includes cylinder with screw member arranged on its outer surface. Screw member consists of separate parts provided with axles, and holes are made in cylinder into which axles of screw member parts are fitted for turning. Proposed support-and-running member car by furnished with detachable flexible elements located on separate parts of screw member. As a result, possibility is provided for moving both off road and along road pavement, without damaging the pavement. EFFECT: increased maneuverability of vehicle, its running speed both off the road and along road, and survivability in case of failure of part of support-and-running members. 2 cl, 6 dwg

Description

The invention relates to transport machinery, in particular to supporting and navigating elements of cross-country ability.

Known wheeled support and running elements of cross-country ability, containing a rim and a hub with radial grooves made on the side surface, in which flat spiral elastic spokes are installed at one end, the other end of each of which is pivotally fixed to the inner surface of the rim, and the radial grooves are made with a closed the contour and floating axes are placed in them, which are fixed at the ends of flat spiral elastic spokes (SU 1177178).

The disadvantage of this device is the limited width of the rim, the complexity of the design due to the many joints in the wheel for each spoke.

It is known a wheel containing a pair of hubs and an elastic rim in the form of a spring, the turns of which are fixed on the hubs; the spring is made of a fusiform shape with tightly adjacent coils having the possibility of free movement relative to each other, while the coils with a minimum diameter are made at the ends of the spring (RU 2121927).

This wheel is more effective in comparison with the analogue described above in conditions of significant irregularities in the path of movement, however, any wheeled supporting-running elements are significantly inferior in respect to caterpillar patency.

In particular, the supporting elements of a vehicle are known, including a caterpillar carriage, which is mounted on a drive axle of a motor-transmission unit of a wheeled vehicle and consists of two caterpillar tracker propulsion devices. At the same time, wheels of a wheeled vehicle that has undergone conversion are used as road wheels. The alignment of the balancers with the middle driving track rollers-wheels is ensured by spacer rollers drawn between the track rollers-wheels. Spacer rollers also provide torque transmission from the middle driving support roller-wheel to the extreme support roller-wheels, unloading the bearings of the hubs of the extreme support roller-wheels and tensioning the tracks (RU 2196068).

However, in some cases, an even higher adhesion of the support elements with the ground is necessary.

This problem is solved by the well-known supporting-running elements, including a cylinder with a screw element placed on its outer surface (GB 2300842 A).

This technical solution is taken as a prototype of the present invention.

Supporting elements rotate around their longitudinal axes, the augers cut into the ground and provide an extremely large grip with it, respectively, the maneuverability of a vehicle equipped with auger supporting elements is very significant.

However, this device has a number of significant disadvantages.

First of all, it should be noted that it is intended mainly for moving off-road. In the case of movement on the road, the road surface is destroyed by a screw. Thus, the scope of use of the prototype is very limited. It should also be noted that the vehicle can only move in the direction of the longitudinal axis of the cylinders with screw elements, which leads to its very low maneuverability. Therefore, the vehicle has to be transported on roads on special platforms. The intrinsic speed of the known supporting-running element is in any case small. If there is a need to move off-road, but on dense, stable soil, the device moves at the same low speed as on loose, unstable. It should also be noted that in the event of failure of one of the two cylinders with screw elements, the vehicle loses the ability to move in a straight line and can only move in a circle, which causes its low survivability.

The present invention is based on the solution of the problem of ensuring the possibility of moving the vehicle both off-road and on the road surface, without causing the latter significant harm; the problem of increasing the vehicle’s maneuverability, its speed on a stable ground or road, and survivability in the event of failure of the parts of the supporting-running parts are also solved.

According to the invention, this problem is solved due to the fact that in the supporting-running element of the vehicle, which includes a cylinder with a screw element placed on its outer surface, the latter is made of separate parts provided with axles, and holes are made in the cylinder, into which they are rotatably inserted the axis of the parts of the screw element; supporting-running element can be equipped with removable elastic elements placed on separate parts of the screw element.

The applicant has not identified sources containing information on technical solutions identical to the present invention, which allows us to conclude that it meets the criterion of “novelty”.

The implementation of the distinguishing features of the invention leads to important new properties of the object (technical result): the screws become transformable, therefore, the supporting-traveling element and, accordingly, the vehicle can move both in the axial direction and in the direction perpendicular to the axial. Thus, to change the direction by 90 °, it is not necessary to perform a turn in an arc: this change is carried out from the spot; when moving a vehicle on dense soil or road, the auger is transformed and cylinders with parts of auger elements roll like ordinary rollers, the speed increases significantly; due to the auger transformation, it damages the road surface to a lesser extent (no more than track tracks), and if elastic elements, for example, from the material used for car tires, are fixed on parts of the screw elements, damage to the road surface will not occur at all; if one of the supporting-running elements fails, then the movement in the direction perpendicular to the axial axis can be carried out with the help of another supporting-moving element, which leads to a significant increase in the survivability of the vehicle, as it can quickly leave the danger zone itself where the damage occurred .

The applicant has not found any sources of information containing information about the impact of the claimed distinctive features on the technical result achieved as a result of their implementation. This, according to the applicant, indicates that this technical solution meets the criterion of "inventive step".

The invention is illustrated by drawings:

figure 1 is a bottom view of the vehicle in a position where the parts of the screw element form a single spiral;

figure 2 is the same, the parts of the screw element are rotated to the position when their planes are parallel to the longitudinal axes of the cylinders;

figure 3 is a view of I-I in figure 1;

figure 4 is a view of II-II in figure 2;

5 is a variant according to claim 2 of the claims;

6 is a variant according to claim 2 of the claims.

Vehicle 1 includes, in a specific example, two support elements, the longitudinal axes of which are parallel to each other. Each supporting-running element contains a cylinder 2 with a screw element 3 placed on its outer surface; the cylinders with the help of the axles 4 are placed in the frame of the vehicle 1 and are driven by a drive (not shown). In particular, it is assumed that the rotation of the cylinders is obtained from an internal combustion engine of a sufficiently high power comparable to the engine power of a tracked vehicle. The screw element 3 is made of separate parts 5, each of which has an axis 6. The axes of the parts of the screw element are rotatably inserted into the holes that are made in the cylinder 1. The parts of the screw element are rotated by means of a drive, which is not shown in the drawings. The drive can be any of a number of widely known ones: hydraulic, electric, mechanical, or any combination thereof. The supporting-running element can be equipped with removable elastic elements 7, which are placed on separate parts 5 of the screw element 3. The removable elastic elements can be inserted (figure 5) or laid on (figure 6). In the specific example, cord rubber is used as a material for them, such as rubber of automobile tires.

The device operates as follows.

To move in difficult terrain, parts of the screw element are brought by means of their drive to the position of figure 1, that is, the screw element 3 forms a single spiral. The cylinders rotate with their drive in opposite directions, the screw elements penetrate the ground, and the vehicle moves in the direction along the longitudinal axes of the cylinders. If it is necessary to turn along a certain arc, one of the cylinders is stopped and fixed, and the other cylinder, rotating, rotates the vehicle in a certain space along a certain trajectory. If necessary, reverse the movement of the vehicle (reverse) change the direction of rotation of the cylinders.

For a sharp change in the axial direction of movement of the vehicle in the direction perpendicular to the longitudinal axes of the cylinders, parts of the screw elements are brought into the position of FIG. 2. Then both cylinders rotate in the same direction. The vehicle will move almost from its place; for such a change in direction, no additional room for maneuver is required.

Movement is also possible in the event of the failure of one of the supporting-running elements.

For rapid movement on dense, stable soil, the position of FIG. 2 is also used. In this case, the adhesion of the supporting-traveling element with the soil will be slightly less than when moving in the axial direction with the installation of the parts of the screw elements in the form of a single spiral, however, the speed increases several times. The movement on the road is also carried out. In order to prevent damage to the road surface, such as asphalt, either plug-in elements (figure 5) or patch elastic elements 7 are put on part 5 of the screw elements, which are removed when the vehicle is transferred to weak unstable soil.

For the manufacture of the device requires conventional factory equipment and conventional structural materials, which determines the compliance of the invention with the criterion of "industrial applicability".

Claims (2)

1. The supporting-running element of the vehicle, comprising a cylinder with a screw element located on its outer surface, characterized in that the screw element is made of separate parts provided with axles, and holes are made in the cylinder, into which the axes of the parts of the screw element are inserted with rotation . 2. The supporting element according to claim 1, characterized in that it is equipped with removable elastic elements located on separate parts of the screw element.

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