Vehicle

FIELD: transport engineering; amphibian vehicles.

SUBSTANCE: proposed vehicle has trimaran water displacement body, wheeled propulsive device and water propulsor. Two pressure chambers with fans are installed in bow of body. Surface of body bottom part is provided with bend having two slot-like holes connected with pressure chambers to let out air jets created by fans and forming air cushion in under-bottom space. Wheeled propulsive device is of rolling type and it has individual drive from geared motors. Wheels of propulsive device are made in form of cylindrical housing with flanges on outer surfaces of which round-shape cross slots are milled in number corresponding to number of support and rest flexible members of rim secured by pins in holes of flanges for turning through angle of roll out to form, together with wheel rim and inner engagement of support-and-drive device of vehicle, mechanism with three degrees of freedom implementing rolling system with negative friction providing translational movement of vehicle owing to upward-forward (backward-up-ward) displacement of center of masses. Support-and-drive device can be furnished with covers interconnected by studs. End of upper stud can be made in form of cylinder fitted into extensible grip installed in upper part of vehicle body on its side to change mode of operation of wheel. Water propulsor can be made in form of paddle wheels installed on vertical posts for vertical displacement and containing cylindrical housing fitted in bearings on axle and paddles of rectangular shape or paddles with bevels to build additional traction force and increase efficiency when moving in water or negotiating bogged terrains.

EFFECT: improved operating characteristics of amphibian vehicle.

3 cl, 6 dwg

 

The invention relates to the field of vehicles - vehicles used for the transport of works on different surfaces movement (soil, swamp, water).

Known analogue of a vehicle containing a sealed enclosure, which includes three sections that are connected end of the hollow elements can be rotated at sections relative to the average 180° from the actuator and provided with clips of their relative position, motor installation, transmission assemblies associated with the wheel propulsion and water propulsion [1].

The disadvantages of analogue should include the complexity of the hull, which must recombine to movement through the water, which involves moving the seal, since the front and rear housing parts are rotated relative to the Central section 180°that is structurally difficult to do with placement inside the power plant and transmission units associated with the wheel propulsion.

Closest to the proposed invention by the technical nature should include the vehicle, including wodoslawsky case, caterpillar propulsion interlock devices, middle and rear road wheels, videotraining shield, front hydrodynamic flap, aft hydro is anemicescuu lattice, the insulating casing, bead hydrodynamic lattice [2].

The disadvantages of this vehicle should be attributed to the low efficiency of propulsion, especially when driving through water, and also the need to establish hydrodynamic shields, locking devices, complicating the design of the chassis, and, as a consequence, reducing the reliability of the propulsion and increase the value of the product.

The technical result of the invention is to provide a universal vehicle through the use of mistransmission system with individual drive wheel rolling type, implementing a scheme for summing the power flow with a “negative” friction and forced synchronization (the effect of entrainment), rowing-men-wheels and fans blowers, creating together with housing TS airbag, complex application which allows to achieve a high overall efficiency of the vehicle and its performance on different surfaces movement (soil, swamp, water).

This is achieved by the fact that the vehicle containing wodoslawsky the body of the “trimaran”, in the bottom part of which is made the break with two slit-like openings separated by the keel beam (keel) to release air from the fan - blower, creating in pozdnysheva about what transto airbag, and wheeled mover rolling type, which includes the reference-drive unit [3], made in the form of a cylindrical body, on the outer surface of which is equipped with elastic elements with the ability to rotate the angle of rolling out (out of gauge) wheel, thus forming together with the inner toothing of the support-driving device mechanism with three degrees of freedom to implement the scheme rolling with “negative” friction, and the motion of the water, if necessary, may be forced synchronization or the effect of “seizing” rims wheels (scheme 7).

Scheme with individual drive wheels rolling type and paddle wheels men thruster reduces the mass of the vehicle, to compose propulsion considerations of minimizing circulation of parasitic capacity, and improve reliability, durability and General efficiency.

The invention consists in that the proposed design of the vehicle allows you to effectively use it on different surfaces of motion through the use of propulsion rolling type, men of propulsion, as well as fans, blowers, creating an air cushion in pozdnysheva space and having the ability to tune for maximum efficiency at their joint and otdelnoi work.

Figure 1. presents a General view of the vehicle with the image of the discharge chamber and fans; figure 2 - section a-a wheel rolling type, figure 3 - section paddle wheel men thruster; figure 4 is a left side view of the propeller wheel with a picture of the device its vertical movement; figure 5 - scheme of work wheel rolling type on the water in the “seizing”; figure 6 - scheme of work wheel rolling type on the ground.

The vehicle (1) includes a housing 1, in the fore part of which is made of two discharge chamber 2 fans 3, the bottom part of the housing has a bend with two slit-like openings 4 to exit airflow from fans, creating in pozdnysheva space of the air cushion.

On the sides of the vehicle, in its bottom part, mounted wheel 5. The rim 6 of the wheel 5 consists of two types of elastic supporting elements 7 and 8, which their eyes are mounted in transverse slots in round shape, made on the outer surface of the cylindrical body 11 of figure 2 and United with him by the fingers 9, form a kinematic pair of the first kind - cylindrical hinge, allowing the relative movement (rotation angle ϕ/2), thus forming mechanism with three degrees of freedom. This gives opportunities is good to adapt to the rim 6 to the changing driving conditions.

Elastic elements 8, located under the support elements 7 (1, 6) (inside the outer rim), on the one hand, are the supporting elements of the external rim (element 7), and on the other hand, is increasing its stiffness and damping of the hull when the obstacles. Elastic elements 8 are fastened in the grooves of circular form, on the outer surface of the cylindrical body 11, the same elements 7.

The flanges 10 are the structural elements of the cylindrical body 11, including the musculo-drive device 12 (figure 2), in the inner surface of which is fixed a gear-wheel 13, which form together with the shaft gear 14 mounted in the bearings 15 of the vehicle body 1, gear coupling, realizing torque gear motor 16. Support rollers 17 mounted on the shaft-gear 14, the support body vehicle and carry out the displacement of the center of mass (instantaneous pressure centers) - forward - up (back - up), implementing the scheme rolling wheels with "negative" friction, and cause translational movement of the vehicle by accumulation of the full mechanical energy to the resistance to rolling is equal to the overturning moment MODA.

Side covers 18 (2), interconnected by pins 19, provide the stability of the internal gears of the musculo-drive devices is 12 at high angles of spinning rollers 17 shaft-gear 14, and upper belts fixed axis 20, the retaining elastic elements 7 and 8 of the rim 6 from falling out, ensure the rigidity of the movable part of the support-driving device when turning the vehicle and protects the internal cavity of the gearing against ingress of foreign objects during movement.

The upper end of the stud 19, addressed to the Board the vehicle, made in the form of a cylinder with a chamfer, which is retractable grip 21 installed in the upper part of the body (figure 2), and thereby creates the possibility of changing the mode of operation of the wheel.

In the intervals between the wheels rolling type 5 are vertical posts 22 3, 4 with grooves, in which vertically move the guides corps geared motors 23 paddle wheels 24, men thruster containing cylindrical body 25 mounted in bearings on the shaft 26. On the outer surface of the cylindrical body 25 within the fan disk 27 on the perimeter mounted propeller blades 28.

Paddle wheel 24 with a gear motor 23 by means of the feeding mechanism 29, the upper eyelet attached to the bracket 30 that is installed on Board a vehicle that can move vertically, tuning in to a desired mode of operation depending on surface movement (water, swamp).

The principles and behaviors of the vehicle can be depict what aulani as follows.

Movement on the ground is carried out by summing the torque Mkrfrom the gear motor 16 to the support-driven device 12 through the shaft-gear 14, the support rollers 17, which are rolling on the inner surface of the support-driving device 12 shifts the center of mass forward - up (back - up). Creates an overturning moment MODAon the rim of the wheel, consisting of elastic supporting elements (scheme 6) and forming a mechanical system with three degrees of freedom that implements the schema with “negative” friction, the essence of which consists in the following.

The magnitude of the applied torque Mkrand accordingly, the level of energy consumed by the rolling friction is determined by the coefficient of friction b>0, which is greater than zero and thus the differential equation of motion has the form:

the transformation which gives the following result:

whence it is seen that the left standing members Express the change in kinetic and potential energy of the system (“rink - ground”) for the time τ. Because b>0, then the integral on the right is positive and the change of total energy is negative, i.e., occurring costs of the total energy on the rolling friction, which is typical for traditional spinning wheel, not possessing the property of accumulation is Olney energy.

In the design of the propulsion of the vehicle system has the property of accumulation full of energy due to the displacement of the center of mass (instantaneous center of pressure) up and forward relatively stable equilibrium and, hence, we have the coefficients b<0, and h<0, where h=b/2m.

Then the equation of motion of a system “rink - ground” can be written in the form:

where- the function describing the dependence of the friction force on the relative velocity u is the characteristic of friction.

Whenmuch less v0(high speed), expanding the function F in a row, we get an equation of motion has the form:

where the member after the equal sign denotes only the displacement of the system from its equilibrium position by the value of F(ν0)/k in the direction of motion of the wheel.

The coefficient b+F'(ν0) whenand its sign determines the type and characteristics of friction and consequently the properties of the contacting surfaces.

The value of F'(ν0) represents the angle of friction characteristics for this ν0that steeply characteristics (b+F'(ν0)<0), characteristic of the rolling wheels is with the system with a “negative” friction [equation (4)].

Thus, the movement of the vehicle over the ground, scheme 6, with regard to the foregoing is carried out with a high overall efficiency.

The movement of the vehicle through the swamp involves the simultaneous use of propulsion rolling type and men of the propulsion device and, if necessary, included fans-blowers air cushion.

The movement of the vehicle through the swamp is carried out using a mover rolling type, and men thruster configured in height and kinematic parameters. If necessary, can be included fans-blowers, creating an air cushion.

The movement of water can be performed in different modes, in particular in displacing mode contour wheel mover will take a position in accordance with the scheme of figure 5 and, in the closing torque, forms a self-oscillating system by type of pendulum Proud. In the case of a sufficiently small difference between the frequency of rotation of the rim and a rotational speed of the power factor (torque Mkr) stable periodic motion of a self-oscillating system acquires the frequency of the external force factor (Mkr). When it comes to forced synchronization or the effect of entrainment, in which the rim of the wheel will move in accordance with the schemes of the th 5.

To effect the movement of the vehicle in the planing mode, the rim is fixed to the upper clamp-emphasis in the upper position, we get a gear with internal toothing. Movement is accomplished by rotation of the rim and fans-blower creates an air cushion. At high loads in operation can be switched on and men mover, but here it will be necessary to address the issue of synchronization of their work, including the operation of control devices (sensors, angular velocity, longitudinal forces and others).

The above structural features of performance that uses the principle of operation of the propulsion rolling type, the effect of “negative” friction, and working on the water effect “entrainment”, provide high throughput and efficiency of the TC on different surfaces of motion.

Movement on the ground created by anchor-driving device with a rotating support elements, significantly reduce negative impacts on the soil (due to the practical absence of the tangential component of the voltage during the formation of ruts)that from an environmental point of view is very important.

Economic efficiency is achieved by reducing the quantity of metal per structure (mistransmission scheme with the individual what rivada propulsion) and application mover rolling type with the effect of “negative” friction when moving on the ground and the effect of “seizing” when moving through the water, as well as the integrated application of air cushion, plug and play men and propulsion rolling type.

Literary sources

1. USSR author's certificate No. 1159806, CL 60 F 3/00, 1985.

2. Multi-tracked chassis, Too, Uscasino and other edited Wrapnative. - M.: Mashinostroenie, 1998, 342 S.

3. The copyright certificate of the Russian Federation No. 2038218, IPC 60 In 19/00, VK 17/32, 1995

1. The vehicle containing wodoslawsky the body of the “trimaran”, wheel propulsion and men mover, characterized in that the fore part of the hull are two discharge chamber with fans, the surface of the bottom part of the case is made with a bend in which you have two slit-like openings connected with the pressure chamber for the exit of the air flow generated by the fan and forming an air cushion in pozdnysheva space, wheeled mover made rolling type with individual drive geared motors, its wheels are made in the form of a cylindrical body with ribs on the outer surface of which profesionaly transverse grooves round shape by the number supportive and flexible support elements of the rim, fixed fingers in the holes in the flanges and having the ability to rotate the angle of rolling out, forming together what about with the wheel rim and the inner toothing of the support-driving device, supplied with the vehicle, a mechanism with three degrees of freedom, which implements the scheme rolling with “negative” friction, causing the translational movement of the vehicle due to the displacement of the center of mass of the vehicle up-forward (back-up).

2. The vehicle according to claim 1, characterized in that the supporting-wheel drive device is made with lids connected to each other by pins, and the upper end of the stud is made in the form of a cylinder with the possibility of its occurrence in sliding engagement, installed in the upper part of the vehicle body on its side to change the mode of operation of the wheel.

3. The vehicle according to claim 1, characterized in that the men of the propulsion device made in the form of paddle wheels mounted on vertical posts with the possibility of vertical movement and contains a cylindrical housing mounted in bearings on the axle and propeller blades rectangular or beveled to create additional thrust and increase the overall efficiency when driving on water and swamp.



 

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FIELD: transport engineering; amphibian vehicles.

SUBSTANCE: proposed vehicle has trimaran water displacement body, wheeled propulsive device and water propulsor. Two pressure chambers with fans are installed in bow of body. Surface of body bottom part is provided with bend having two slot-like holes connected with pressure chambers to let out air jets created by fans and forming air cushion in under-bottom space. Wheeled propulsive device is of rolling type and it has individual drive from geared motors. Wheels of propulsive device are made in form of cylindrical housing with flanges on outer surfaces of which round-shape cross slots are milled in number corresponding to number of support and rest flexible members of rim secured by pins in holes of flanges for turning through angle of roll out to form, together with wheel rim and inner engagement of support-and-drive device of vehicle, mechanism with three degrees of freedom implementing rolling system with negative friction providing translational movement of vehicle owing to upward-forward (backward-up-ward) displacement of center of masses. Support-and-drive device can be furnished with covers interconnected by studs. End of upper stud can be made in form of cylinder fitted into extensible grip installed in upper part of vehicle body on its side to change mode of operation of wheel. Water propulsor can be made in form of paddle wheels installed on vertical posts for vertical displacement and containing cylindrical housing fitted in bearings on axle and paddles of rectangular shape or paddles with bevels to build additional traction force and increase efficiency when moving in water or negotiating bogged terrains.

EFFECT: improved operating characteristics of amphibian vehicle.

3 cl, 6 dwg

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