Transport facility caterpillar propulsor to overcome scarp, counterscarp and stair flights

FIELD: transport.

SUBSTANCE: invention relates to caterpillar transport facilities and may be used in wheeled chairs, Planetokhods, and off-road vehicles. Caterpillar propulsor comprises frame 1, caterpillar tracks running over drive sprocket 5, idler 6, and road wheels 7. One of said sprockets is equipped with drive with brake 8. Sprockets are shaped to equilateral triangle 9 with rim 12 and fitted off-center to engage with inner-gearing wheels 12 fixed on the frame. Drive sprocket and idler are arranged plane-parallel relative to each other.

EFFECT: higher efficiency and controllability.

2 cl, 3 dwg

 

The invention relates to the field of tracked vehicles and can be used in wheelchairs-wheelchairs, planetary Rovers, robots, vehicles with high cross.

Famous U.S. patent No. 4654080, CL B62D 55/04. The drawback is a very complicated transmission. The presence of two different types of propulsion significantly impairs mass and dimensional characteristics and controllability of the device.

Known propulsion by A.S. USSR №343893, CL VV 5/02.

The disadvantage is the complexity of movement and control, poor communication, propulsion with stairs due to the variability of the actual dimensions of stairs in different areas and poor handling wheels.

Known also tracked propulsion (patent RF №2194648, 20.12.2002,), comprising leading and guiding stars, the supporting rollers, caterpillar. The caterpillar is made in the form of several even-numbered rows are interwoven with each other endless spiral of spirals and zapasovany ropes.

The disadvantage of such devices is the difficulty in overcoming the obstacles of the type of vertical walls escarpments without significantly increasing the dimensions of the stars. For normal operation of the sprocket should have a large radius, the height of the steps, and to reduce the size and weight of the radius of the sprockets should be minimal.

The target for the present invention: to increase efficiency, the operability and controllability of the mover.

The contradiction is solved by use of asterisks in the figure of the triangle, Rello having a width equal to the normal diameter of the wheel, and the radius is two times greater. This is achieved by the fact that in the proposed caterpillar propulsion sprocket is made in the form of an equilateral triangle, the sides of which are formed of arcs of circles with centers at the vertices, with sprocket fitted with a toothed crowns, and set eccentric to interact with rigidly fixed on the frame gears internal gears mounted in the center of the square described by the vertices of the triangle, and the drive and idler are located relative to each other plane-parallel. Because the triangle of Rallo and circumference are figures of equal width, so track rollers made simple round shape.

Figure 1 shows schematically the tracked mover of the flight; figure 2 - the same, on a horizontal platform at the approach to the obstacle; figure 3 - scheme of the stars and kinematics of their movement.

Tracked mover includes a frame 1 with the attached device functionality and control 2 (for example, wheelchair, scientific equipment, weapons, etc.), caterpillar closed circuit 3, state the substance of the pivotally interconnected links 4, cover drive 5 and stretch 6 sprockets and rollers 7. One of the stars is equipped with a drive with a brake device 8. Sprocket is made in the form of an equilateral triangle 9, the sides of which are formed of circular arcs 10 circles with centers at the vertices of 11. Sprocket fitted with a toothed crowns 12 and mounted eccentric to interact with rigidly fixed on the frame gears internal gears 13. These gears are mounted in the center of the square 14, described by the vertices of the triangle, and the drive and idler are located relative to each other plane-parallel. Track rollers 7 are made of a round shape.

Tracked propulsion works as follows. Rotation of the actuator 8 is transmitted to a toothed crown of 12 stars 5. Crown gear 12, interacting with the toothed wheel 13, rotates the sprocket 5. The teeth of this sprocket being engaged with the crawler chain 3, lead her into motion. In turn, the chain engaging with the teeth of the driven sprocket 6, rotates the associated ring gear 12, and he was rolling on a toothed wheel 13 fixed to the stationary frame 1 causes the entire mechanism in motion. Due to the plane-parallel orientation of the sprockets, the chain is always taut and doesn't SAG, and kinematics provides renominalisation moving frame, without hesitation vertically.

Declare caterpillar mover is manufactured and tested on an existing industrial equipment. The kinematics of the mechanism checked for proper operation. Tracked mover can be made as light type using the stub roller chains and heavy - armored vehicles.

The patent studies and the possibility of practical realization of the claimed caterpillar tracks allow you to establish compliance with the conditions of patentability, namely novelty, inventive step and industrial applicability.

1. Tracked propulsion of the vehicle to overcome the escarpment, the moat and staircases that contains a frame with the attached device functionality and control, caterpillar closed circuit consisting of pivotally interconnected links, covering the drive and idler sprockets and rollers, drive with a brake device, wherein the sprocket is made in the form of an equilateral triangle, the sides of which are formed of arcs of circles with centers at the vertices, with sprocket fitted with a toothed crowns, and set eccentric to interact with rigidly fixed on the frame gears internal C is Ceplene, mounted in the center of the square described by the vertices of the triangle, and the drive and idler are located relative to one another plane.

2. Tracked mover according to claim 1, characterized in that the rollers are made of a round shape.



 

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