Item snow chains

 

(57) Abstract:

Usage: the invention relates to vehicles and in particular to devices improve cross. The inventive anti-skid element contains a plate 1 made in the form corresponding to the profile of the tire tread of the wheel 4. The plate 1 is fixed edge-lugs 2, located longitudinally along the length of the plate, and lateral lug 3, which is firmly connected to the lugs 2. 3 Il.

The invention relates to vehicles, and is intended for a device that is temporarily attached to the bus leading, driving wheels of the vehicle to prevent slipping on the roads, unsteady floor.

Known a number of technical solutions aimed at improving the efficiency of the traction wheels with the road through the snow chains: with a complex pattern consisting of many short chains anchor type (patent Germany N 532328, CL 60 With 27/20, 1976). The drawback of such solutions is increased wear of the working surface of the wheel due to the small contact area of the links of the anchor chain, located perpendicular to it. In addition, a small length of chain and depth is to increase the depth of penetration of the chain link into the soil, and thereby to improve the reliability of the traction wheels with the road use special lug design that is mechanically attached to the links, increasing their contact area (patents Germany NN 550114, 610478, CL 60, 27/20, 1978).

The drawbacks of such lugs are also increased wear of the working surface of the wheel, a small length of contact of the lug with the road compared to the width of the wheel and a sharp increase in the load on the drive mechanism.

Closest to the proposed to the technical nature of the solution, reducing the disadvantages of using mnogostvorchatyh snow chains as without spurs, and with them, is the element on the outer surface for engagement with a road surface made edge-lugs, and on the side of the ribs for engagement with the road surface. At each end of the element is made a number of through holes, through which are passed the supporting elements spaced around the circumference of the tread and retaining these elements in position against transverse displacement.

The drawbacks of such item are small strength and durability, not reliable grip of the NTA with the working surface of the wheel in the transverse direction.

The aim of the invention is to prevent slippage of driving wheels of the vehicle through reliable grip with shaky floor and prevent this destruction of the working surface (tread) wheels.

The goal is achieved in that the metal element chains manufactured-shaped (Tauri) cross-section of a length equal to the width of the wheel. Moreover, the surface of contact with the protector made in the form of plates, curved on the radius of the working surface of the wheel. The plate has a length greater than the width of the wheel 40 to 50 mm of the Edges of the plate are bent in the opposite edge of the lugs. When this curved ends to reduce the weight of the element are drilling or made in the form of frames.

This bend the ends of the plate serves to prevent displacement of the element from the working surface of the wheel in the transverse direction. Due to the fact that the contact element chains with the protector is on a well-developed area, equal to the product and the length and width b (b), then the surface of the wheel is not exposed in the contact zone of increased destruction as a specific contact stress acting on the protector, NESN is Irina plate, and located perpendicular both to the axis of the plate and its surface. Cross prevents the bending edge of the lug relative to the axis of the plate, prevents skidding of the vehicle and are designed to connect the elements in the chain. To do this, they made two holes in the lower corners.

In Fig.1 3 presents the element chains.

The element contains the plate 1, the edge-lugs 2, 3 cross.

When engagement with the road edge-lugs 2 tends to rotate the element of the circuit in the direction opposite to the rotation wheel 4 around far from the road edge of the plate 1. In this regard, the edge-lugs is not along the longitudinal axis and offset by a distance of 1/3 the width of the plate from the middle of the road edge. This arrangement of the rib-lug on the plate prevents the increased pressure on the surface of the wheel furthest from the road edge of the plate, and therefore, prevents the destruction of the protector.

Element circuit operates as follows.

On the drive wheels of the vehicle is put assembled from elements of the anti-skid chain of length equal to the length of the forming wheel.

Sahiba rib-lug and thereby prevent slippage of the vehicle. The item steadily works (not shifted from the working surface of the wheel in the transverse direction) and with a smaller length of bend (10 mm), but when heavily loaded Assembly and tensioning element chains. Then, in this case the wheel is experiencing significant compressive stresses. In the process of crossing the rugged road of a tension element can reduce the force which presses the element of the snow chain to the wheel surface. When this occurs, the weakening of the clamp, which leads to the displacement of the circuit elements with the wheels in the transverse direction. To ensure the reliability of the clutch elements of the chain wheel size bend the ends of the plates at 20-25 mm can be considered optimal.

Due to the fact that increasing the length of the bends of the plate adds to the load on the drive wheels of his extra weight, it is recommended that the curved ends of the circuit elements to perform in a grid through holes or in the form of a frame with a width of 3mm wall

ELEMENT CHAINS mainly for the wheels of the vehicle containing the track in the form of plates with the main longitudinal lugs and attached to it a transverse lug located on the edges of the plate, and the holes for Assembly of the elements in the chain, characterized in that the ends are made on the profile of the working surface of the wheel plate is performed at 40 to 50 mm long longitudinal lug, are bent in the direction opposite to the main lugs, for the formation of side thrust elements and made the holes or in the form of a framework to facilitate element, the transverse lugs are perpendicular to the main longitudinal lugs and strongly connected to its ends and with the surface of the plate, with their length equal to the width of the plate and in the lower corners of these lugs is made of the above mentioned holes for Assembly of the elements in the chain.

 

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