Method to up vehicle cross-country capacity and device to this end

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive industry, particularly to methods and devices designed to up the vehicle cross-country capacity on soil and peat waterlogged ground. Proposed method consists in increasing bearing surface of wheel tire. To this end, it is necessary to allow for surface structural tensile strength, specific surface pressure under wheel center, specific adhesion and surface internal friction angle. Wheel cross section surface radius is set for replaceable reinforced circular layers fitted onto tire and locked thereon by circular reinforced partitions and ribs arranged at the center of symmetry of aforesaid detachable layer, or on its edges.

EFFECT: higher cross-country capacity.

7 cl, 6 dwg

 

The invention relates to the field of transport and is associated with increasing the bearing capacity of soil and peat substrates in contact with a wheel of the vehicle.

The known method of increasing the permeability of the wheels of the vehicle, i.e. the setting on the side of the wheel interchangeable head type "Water-Sod" ("marsh claws"), is made in the form of a cone made of elastic plastic, which is fastened to the rim and tire of a wheel using a system of pins, clips and nuts with increasing cross support base and traction with the ground, with cone nozzles are made of different diameters for standard wheels and invest in each other shot for transportation [1].

The disadvantage of this method of increasing the permeability of the wheels of the vehicle is to increase the bearing capacity of weak soil foundations under significantly increase under the cone bearing surface of the nozzle wheel mounted on the tire and its rim only for the duration of dangerous terrain areas. Unused nozzles, invest in each other, take place in the Luggage compartment of the vehicle. When this tapered surface compared with the spherical is on the same basis, with an equal area of contact is smaller carrying capacity.

Most near what they are on the technological nature of the present invention is a method of increasing the permeability of the wheels of the vehicle, which consists in maintaining the air pressure in the chamber of the tire p=3,2±0.2 kgf/cm2on the paved roads and hard-Packed solid roads to ensure the safety of tyres in high-speed driving mode, and short-term reduction of air pressure in the chamber of the tire to the value R=0,8 kN/cm2on snow and wetland soil at a maximum speed of 10 km/h and also to the value R=1,2...1.7 kgf/cm2in loose sand, loose soil, wet meadow [2].

The disadvantage of this method of increasing the permeability of the wheel is only a short work of his tire in a deflated condition during mate in the movement and contact with soil, based on the changing radius.

Technological result of the proposed method of increasing the permeability of the vehicle wheels, which consists in increasing the supporting surface of the tire wheel set for overcoming grounds radius (R) at the maximum specified width (in) contact is achieved by the fact that for a long reusable overcome terrain areas, characterized by an average value of the angle (φ) of the internal friction and unit cohesion (C) the contact surface of the tire to overcome ground base, give the value of the radius of the cross section iswhere is the sector angle of the arc of the elastic polycontact tire wheel, ground base,- pressure structural strength to overcome the grounds for tensile,critical pressure for the base under the center of the wheel, for reusable overcome startbanner grounds give the value of radius is- whereas for disposable overcome off-road in the "first critical phase condition gives the value of radius iswhereis the sector angle of polycontact ground base,- with peat substrate. Moreover, given the radius R of the contact cross-section of the vehicle wheels with soil or peat base with appropriate mechanical properties φ and ask for replacement, put on the tire wheel reinforced annular nozzle, which is fixed against axial movement on the deflated tire by inflating the latter and through the annular partitions and shoulder.

A device for increasing the permeability of the wheels of the vehicle, consisting of rims and tires, masked with one of their sides removable conical nozzle type "Bog-Sod from elastic the CSOs plastic, fixed by using a system of wedges, clamps and nuts to the wheel, with cone nozzles with a larger cross support base and increased adhesion to the soil made with different diameters for standard wheels and nesting into each other during transport [1].

A disadvantage of the known device is the short duration of use cone nozzles for vehicles in overcoming terrain. Significant lateral dimensions of the wheels with the proposed cone nozzles inconvenient when traveling on a busy highway, and they have to remove and load the boot space.

A device for increasing the permeability of the wheels of the vehicle, consisting of pneumococci in the form of a rubber tire, the width of which is 1.5 times the outer diameter and the inner diameter of the hole in ≈4 times less external and internal air pressure which is low and is 0.2...0.5 kgf/cm2that allows you to work with large deformations and low specific ground pressure [3].

A disadvantage of the known device is its large size and weight, not suitable for high-speed vehicle on a highway.

The closest in technical essence to the present invention is a device for increasing the permeability of the wheels of the vehicle, consisting of a bus with the high pressure chamber R-value of 3.2±0.2 kgf/cm2for operation on paved roads and hard-Packed solid roads to ensure the safety of tyres in high-speed driving mode, pneumonias, the trigger valve to reduce the pressure of the air in the chamber to a value of R=1,2...1.7 kgf/cm2at a speed of 10 km/h and the increase of the radius of contact of the tyre with the ground base and raise the pressure in high-speed mode traffic [4].

A disadvantage of the known device is the possibility of short-term move given the design of the wheels on the road on a separate track sections. In this work the tire wheel in podsushennoy condition on long road areas associated with Matam camera and the material of the tires, their warm-up and exit from the working position.

The technical result for the device to improve the road wheels of the vehicle, consisting of a bus with the changing radius of the transverse contact with overcoming ground base when the maximum width (b) contact is achieved by the fact that for a long reusable overcome terrain areas, characterized by an average value of the angle (φ) of the internal friction and unit cohesion (C), the outer radius of the cross-section of a tire made according to the value of whereis the sector angle of the elastic polycontact wheels, ground base,- pressure structural strength to overcome the grounds for tensile,critical pressure for the base under the center of the wheel, for reusable overcome startbanner grounds radius- wherefor single overcoming terrain in the "first critical phase statewhereis the sector angle of polycontact ground base,- with peat substrate. When the tire wheel is equipped with a removable reinforced annular nozzles with outer radius R of the cross section and the internal diameter below the diameter of the deflated wheel of the vehicle. Moreover, a removable annular nozzle has a Central reinforced annular wedge wall, clampable between the side surfaces of the tires of dual wheels of the axle load vehicle, and lateral annular shoulder limiting axial displacement, and a removable annular nozzle single wheels are made with one of its side edges with reinforced annular wall, and on the other hand with the ring BU the tick limit axial displacement. The wheel can also be equipped with a tire with outer radius R for the given characteristics of patent Foundation, and the tread of the wheel is equipped with a lug, the rear lateral side of which in the direction of travel is the supporting surface when the sediment (S) wheels under maximum load when the spacing between the lugs t≤[R-(R2in2)1/2]D2/{(D-2S)[D2(D-2S)2]-1/2}, where D is the outer diameter of the wheel.

The invention illustrated by the drawings, where figure 1 presents the half with half of the discharge twin wheel rear axle load vehicle with worn on their bus annular nozzle, figure 2 - type And annular nozzles twin wheels figure 1, figure 3 - half kind of a half section of a single wheel of the vehicle, figure 4 - type B ring packing wheel in figure 3, figure 5 - side view of the tire wheel all-terrain vehicle 6 is a view In figure 5, combined with half of the section.

Option I. a Device for improving the patency of the vehicle consists of (1) twin wheels, 1 axle, covered by the total exchangeable annular nozzle 2 (2), reinforced steel cord 3 width (in) the nozzle 2, is made with the outer surface of the cross-section under radiuswhereis the sector angle of polycontact ground base, - pressure structural strength to overcome the grounds for tensile,critical pressure for the base under the center of the wheel, for reusable overcome startbanner grounds radius- wherefor single overcoming terrain in the "first critical phase statewhereis the sector angle of polycontact ground base,- with peat substrate. Inner diameter (d) of the ring packing is made under the deflated diameter of the wheel 1 of the vehicle when the removable annular nozzle 2 has a Central reinforced annular wedge-shaped partition wall 4, clampable between the side surfaces of the tires of the dual wheels 1 bridge cargo vehicle, and with a lateral annular flange 5 of the limitation of the axial offset.

For work on the road with the average of the known mechanical properties of the angle (φ) of the internal friction and unit cohesion (C) is selected annular nozzle 2 with the specified soil conditions the radius R of the outer surface, designed for single or multiple pass ground terrain or turf Foundation swampland. The number of the core nozzle 2 is put on a deflated posted the wheel axle load vehicle and clamp the second flat tire (1) by an axial preload wedge-shaped partitions 4, wheel 1 is pumped to the desired pressure in the tires sticking to the walls 4 of the annular nozzle 2 between them and the seal supporting the inner surface of the annular nozzle 2 from slipping on the coupled wheels 1.

Option 2. Device for increasing the permeability of the vehicle consists of (3) wheels 1, covered by a removable annular nozzle 2 (figure 4), reinforced steel cord 3 width (in) the nozzle 2, is made with the outer surface of the cross-section under the radius R defined for the given soil conditions, terrain and swampy areas on the parameters φ and C, and also with the annular reinforced partition wall 4 at one end and an annular flange 5 with the other edges bounding an annular nozzle 2 against axial displacement on the inflated wheel 1.

For work on the road with the known average parameters angle (φ) of the internal friction and unit cohesion (C) is selected annular nozzle 2 with a given radius R of the outer surface, designed for single or multiple pass ground terrain or turf Foundation swampland. An annular nozzle 2 is put on a flat wheel passenger vehicle, which is fixed in the annular cavity of the nozzle 2 by inflation and radial and axial seals between the reinforced sides of the second wall 4 and the side flange 5.

Option 3. Device for increasing the permeability of the vehicle-terrain consists of (figure 5) wheel reinforced tyres 1 width (in)outer radius R of the cross section of which is picked up (6) on the basis of data about the mechanical properties permanently or temporarily overcome the base - angle (φ) of the internal friction and unit cohesion (C). The tread of the wheel tire 1 is equipped with a lug 2, the rear side plate 3 on which the direction is the bearing surface on the base 4 at a Deposit (S) wheels under maximum load and the maximum step between the lug 2 is t≤[R-(R2-0,25V2)1/2]·D2/{(D-2S)[D2(D-2S)2]-1/2}, where D is the outer diameter of the wheel, and the tire 1 is equipped on the sides of the annular supporting shoulder 5 with an outer diameter [R2- (/2)2].

Wheel reinforced tire 1 with a radius of cross-section R, chosen for the given soil conditions off-road for disposable and reusable cross when the maximum load of the vehicle is immersed in the basis of the maximum depth of S, based on lateral annular abutment shoulder 5 and the lateral bearing surface of the lug 2 (figure 5) step t, is calculated for the most complete contact their side surfaces with the base.

Accom is administered invention enables to increase the permeability of wheeled vehicles in conditions of extended off-road with disposable and reusable passing the paved road through the application of quick-detachable ring nozzles or replacing wheels terrain without significant changes in its design and dimensions.

Sources of information

1. W-l Technique for youth", No. 3, 1992 (reverse side 1 cover sheet) (Similar to the method and the device).

2. KAMAZ vehicles 6×6. The user guide. - M.: Voenizdat, 1987. - S-128 (Prototype by the way).

3. Car ZIL-N and its modifications. The user guide. - M.: Mashinostroenie, 1989. - S-126 (Similar to the device).

4. II Artobolevsky I.I. Polytechnical dictionary. - M.: Soviet encyclopedia, 1977. - S (pneumocytes) (Prototype for the device).

1. The way to increase the patency of the vehicle wheels, which consists in increasing the supporting surface of the tire wheel set for overcoming grounds radius (R) of the cross-section at a given width (b) contact, characterized in that for a long reusable overcome terrain areas, characterized by an average value of the angle (φ) of the internal friction and unit cohesion (C), the contact surface of the tire to overcome ground base give the value of the radius of the cross section iswhereis the sector angle of the arc of the elastic polycontact tire wheel, ground base,- pressure structure is nuclear biological chemical (NBC strength to overcome the grounds for tensile, critical pressure for the base under the center of the wheel, for reusable overcome startbanner grounds give the value of radius iswhereas for disposable overcome off-road in the "first critical phase condition gives the value of radius iswhereis the sector angle of polycontact ground base,- peat base.

2. The method according to claim 1, characterized in that the radius R of the contact cross-section of the vehicle wheels with soil or peat base with appropriate mechanical properties φ and ask removable to be worn on the bus wheels reinforced annular nozzle, which is fixed against axial movement on the deflated tire by inflating the latter and through the annular partitions and shoulder.

3. Device for increasing the permeability of the wheels of the vehicle, consisting of a bus with prolonged bearing surface under the radii (R-varir) spanned by basis and constant width (- const) and interacting with it soil or peat substrate, characterized by the angle (φ) of the internal friction and unit cohesion (C), characterized in that for long-term m is Ogorodova overcome terrain areas, characterized by an average value of the angle (φ) of the internal friction and unit cohesion (C), the radius of the cross-section of a tire made according to the value ofwhereis the sector angle of the elastic polycontact tire wheel, ground base,- pressure structural strength to overcome the grounds for tensile,critical pressure for the base under the center of the wheel, for reusable overcome startbanner grounds radius- wherefor single overcoming terrain in the "first critical phase statewhereis the sector angle of polycontact ground base,- peat base.

4. The device according to claim 3, characterized in that the tire wheel is equipped with a removable reinforced annular nozzles with outer radius R of the cross section and the internal diameter below the diameter of the deflated wheel of the vehicle.

5. The device according to claim 4, characterized in that the replaceable annular nozzle wheels are made with a Central reinforced annular wedge wall, clampable between the side surfaces of the tires of dual wheels of the axle g is osobogo vehicle, and with lateral annular shoulder limiting axial displacement.

6. The device according to claim 4, characterized in that the replaceable annular nozzle single wheels are made with one of its side edges with reinforced annular wall, and on the other hand - with the annular flange to limit axial displacement.

7. The device according to claim 3, characterized in that the wheel equipped with a tire with outer radius R for the given characteristics of patent Foundation, and the tread of the wheels come with lug rear lateral side on which the direction is the bearing surface on the base at a Deposit (S) wheels under maximum load, and the step between the lugs is equal to t≤[R-(R2-0,25V2)1/2]D2/{(D-2S)[D2(D-2S)2]-1/2}, where D is the outer diameter of the wheel and tyre fitted on the sides of the annular support flange with an outer diameter equal to [R2- (/2)2].



 

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