RU2504480C1 - Appliance to up wheel adhesion to soil - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to wheels of self-propelled vehicles, particularly, to radially adjusted appliances for increasing of wheel adhesion to road. Proposed device comprises disc fitted on half-axle with radial guides for extending grousers. Said extending grousers are composed of four quadrants with teeth arranged in circle and carriages to engage via said four radial guides with disc fitted on half-axle. To extend grousers said disc comprises four radial air cylinders with their rod-free chambers communicated with vehicle pneumatic system while rod ends are furnished with compression springs. Air cylinder rods are engaged with extending grouser carriages.

EFFECT: higher reliability, lower labor input, ease of use.

3 cl, 6 dwg

Description

The invention relates to wheels of self-propelled vehicles, in particular to radially adjustable devices for increasing the adhesion force of the wheels to the ground.

A device for car wheels is known to prevent slipping, made in the form of retractable spur-bearing rollers, rearranged by interaction of the rollers with the walls of the slots in the disk rotating together with the wheel, equipped with a brake drum to allow the spurs to be pulled out by slowing down the disk or stopping it completely. (Aut. St. USSR No. 50318, class 63d 22/02, publ. 01/31/1937)

The technical disadvantage of this device: a rather complex, not reliable and not convenient to use design.

A wheel with retractable lugs mounted on the semiaxis and containing a disk fixed on the semiaxis is also known, which carries rails for lugs equally spaced around the circumference, an eccentric, having a drive for turning around the semiaxis and mounted on an eccentric with the possibility of rotation of a hoop with pivotally mounted lug posts. The eccentric drive is made in the form of a gear system associated with a control lever, by changing the position of which a change in the lug output during the movement of the machine is achieved. (USSR patent No. 4521, class B60B 15/2, 1928).

The technical disadvantage of the known device is a rather complex and cumbersome design, as a result of low operational reliability and inconvenience of operation.

The technical task is to significantly simplify the design and increase its reliability.

The technical result is an increase in reliability in operation, a decrease in the complexity of manufacturing, an increase in ease of use.

The specified technical result is achieved by the proposed adaptation to the wheels to increase the adhesion to the ground, containing a disk mounted on the axle shaft, having radially spaced guides for retractable lugs. New is that the retractable lugs are made in the form of four quadrants having teeth along an arc of a circle and containing carriages, through which, through four radially arranged guides, they are connected to a disk fixed to the axle shaft. To extend the lugs, the disk mounted on the axle shaft contains four radially arranged pneumatic cylinders, the rodless cavities of which are connected to the pneumatic system of the vehicle, and the rod cavities are equipped with compression springs. The rods of the pneumatic cylinders are connected to the slide carriages.

Figure 1 shows the adaptation to the wheels to increase the adhesion to the ground with retracted lugs, a cross section; figure 2 is the same, a view of figure 1; figure 3 is the same, a section bB in figure 1; figure 4 shows the adaptation to the wheels to increase the adhesion to the ground with extended lugs, a cross section; figure 5 is the same, view In figure 4; in Fig.6 is the same, section GG in Fig.4.

The device for wheels to increase the adhesion to the ground contains a disk 1 mounted on the axle shaft, having four radially spaced guides 2 and four radially spaced pneumatic cylinders 3, rodless cavities of which are connected via the nozzle 4 to the pneumatic system of the vehicle, and the rod cavities are equipped with compression springs 5. Rods pneumatic cylinders 3 are connected with retractable lugs 6 through carriages 7 located in the guides 2.

The principle of operation of the claimed device is as follows.

If it is necessary to increase the force of adhesion of the wheels to the ground, through the nozzle 4, compressed air is supplied from the vehicle pneumatic system to the rodless cavities of the pneumatic cylinders 3. The energy of compressed air is converted into mechanical energy by moving the pistons with the rods, while the springs 5 in the rod cavities of the pneumatic cylinders 3 are compressed. The force developed by the pneumatic cylinders 3 is transmitted through the rods to the carriages 7, which, moving from the center along the radially arranged guides 2 on the disk 1, extend the lugs 6. When there is no need to increase the adhesion force of the wheels to the ground, the supply of compressed air through the nozzle 4 is stopped, rodless cavities pneumatic cylinders 3 are connected to atmospheric air, while under the action of the compression force of the springs 5 lugs 6 are retracted.

Claims (3)

1. The adaptation to the wheels to increase the adhesion to the ground, containing a disk mounted on the axle shaft, having radially arranged guides for extendable lugs, characterized in that the extendable lugs are made in the form of four quadrants having teeth along a circular arc and containing carriages, through which four radially located guides are connected with a disk fixed to the axle shaft. 2. The device for wheels according to claim 1, characterized in that for the extension of the lugs, the disk mounted on the axle shaft contains four radially arranged pneumatic cylinders, the rodless cavities of which are connected to the pneumatic system of the vehicle, and the rod cavities are equipped with compression springs. 3. The adaptation to the wheels according to claim 1, characterized in that the rods of the pneumatic cylinders are connected with the carriages of the sliding lugs.

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