Screw drive

IPC classes for russian patent Screw drive (RU 2481996):

B62D57/036 -

B62D57 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track (sledges B62B; motor sledges B62M)

Another patents in same IPC classes:

Self-propelled off-road vehicle / 2475403

Invention relates to automotive industry, particularly, to propulsors and may be used in construction of higher flotation vehicles. Proposed vehicle comprises main propulsors and extra auger-type propulsor. The latter is arranged under vehicle body, in its lengthwise axis, and controlled from driver cabin. With vehicle bottom adhered to soil, auger propulsor is used to drive the vehicle forward or backward unless stable contact of main propulsors with soil that allows to move in usual way.

Screw propulsor / 2473447

Invention relates to devices in tended for converting engine power output into driving force to move transport facility on soil, in water and under water. Drive propulsor comprises propulsor proper and housing. It represents hollow cylindrical helical jacket arranged along perimeter of transport facility to rotate there around. Strips are coiled in vertical lengthwise plane and bent in screw lines across the mandrel composed of paraboloid of revolution to make screw lines and helical curvilinear concave surfaces with center of curvature outside screw jacket.

Conical propulsor / 2472664

Invention relates to devices is intended for converting engine power output into driving force to move transport facility on soil, in water and under water. Conical propulsor represents hollow conical helical jacket mounted in perimetre of transport facility body front to remove there around and made up of curved convex strips. Strip side edges represent curves of 2^nd-order curvature of width varying over aforesaid jacket length from inlet to outlet. Strips are coiled in vertical lengthwise plane and bent in screw lines across the mandrel composed of paraboloid of revolution to make screw lines and helical curvilinear concave surfaces with center of curvature outside screw jacket.

Drive propulsor / 2472663

Invention relates to devices in tended for converting engine power output into driving force to move transport facility on soil, in water and under water. Drive propulsor comprises propulsor proper and housing. Propulsor is composed of hollow helical jacket mounted all over edges of transport facility and equipped with means to revolve propulsor revolve about its axis and housing. Propulsor is made from one equal-width ribbon bent along flexure lines made at angle to ribbon lengthwise edges to make screw lines on outer surface and screw curvilinear surfaces inside aforesaid helical jacket that differ in both shape and sizes. Distance between flexure lines equals the sum of perimetres of convex curvilinear surface along perimetre of hollow helical jacket.

Direct-flow propulsor / 2470827

Invention relates to converters of engine or other energy source work into that driving transport facilities. Proposed propulsor is composed of hollow cylindrical multistart screw jacket made up of one and more equal-width bands. Screw lines and surfaces are made on jacket outer surface directed in one direction at 5°-45° to its lengthwise axis. Surfaces feature polygonal shape composed of different geometrical figures with four and more lateral sides. Said figures differ in both geometry and sizes. Said hollow screw jacket is mounted all along transport facility body to rotate about its lengthwise axis and said body.

Fire trace ditching machine / 2437695

Invention relates to appliances intended for localising forest fires, particularly, to fire trace diggers. Proposed machine with rotary screw propulsor comprises plough made up of tapered and cylindrical different-rpm augers. Said plough may double as the machine drive axle with self-contained motor.

Marsh motorboat / 2376190

Proposed marsh motorboat comprises hull with engine, frame, two auger base elements, hydraulic pumps, hydromotors and hydraulic jacks. Frame represents lengthwise beam sections with cantilever cross-arms arranged at an angle to each other and pivoted to said beam sections at the front and rear. Hydromotor stators and cylinder shaft bearings supports are pivoted to cross-arm free ends. Hydraulic jacks interconnect cross-arms via pivot joints. Hydraulic jack chambers and those of hydromotors communicate, via high-pressure hoses, with hydraulic pumps. Cylinder chambers are made tight.

Automater method for forest fire localization / 2245179

Method involves burning combustible materials in direction from control line to fire propagation line with the use of remote operated robotic system. Remote operated robotic system includes flame thrower and rotary screw drive, which provides system movement simultaneously with digging control line.

The roller element of the vehicle / 2229998

The invention relates to a transport machine building, in particular for propulsion of the transport-terrain

The roller element of the vehicle / 2229997

The invention relates to a transport machine building, in particular for propulsion of the transport-terrain

Self-propelled off-road vehicle / 2475403

Screw propulsor / 2473447

Conical propulsor / 2472664

Drive propulsor / 2472663

Invention relates to devices in tended for converting engine power output into driving force to move transport facility on soil, in water and under water. Drive propulsor comprises propulsor proper and housing. Propulsor is composed of hollow helical jacket mounted all over edges of transport facility and equipped with means to revolve propulsor revolve about its axis and housing. Propulsor is made from one equal-width ribbon bent along flexure lines made at angle to ribbon lengthwise edges to make screw lines on outer surface and screw curvilinear surfaces inside aforesaid helical jacket that differ in both shape and sizes. Distance between flexure lines equals the sum of perimetres of convex curvilinear surface along perimetre of hollow helical jacket.

Direct-flow propulsor / 2470827

Mechanical group with cylindrical precession: eccentric transmission (versions), transport device with alternately horizontal and vertical backstroke of working member incorporating eccentric transmission (versions) / 2469226

Eccentric transmission based on wheel pair comprises geometrical axles of wheels of transmission main stage coupled by tie-rod. Wheel drive and driven shafts are eccentrically offset relative geometrical axles by amount proportional to required pulsation of torque and drive wheel cylindrical precession. Distance between wheels equals that between axles. Transport device mechanism is based on eccentric transmission with controlled eccentricity.

Unit to collect oil and oil products from contaminated swamp surface / 2460662

Unit to collect oil and oil products from a contaminated surface of swamps includes a walking swamp buggy. A swamp buggy comprises a body, joined with parallel installed pontoons, a mechanism of alternate displacement of pontoons, mechanisms to remove loads from cantilever ends of elements of telescopic units in their open condition, a mechanism to rotate a unit, an oil collecting drum, barriers - pontoon skis, barrier booms and a container to transport barrier booms and to accumulate collected oil. The body represents a chassis installed on central and side pontoons, where telescopic blocks are tightly inserted. The oil-collecting drum comprises a system of collected oil pumping. Barriers are suspended onto the oil-collecting drum. A work place of operators - fitters of barrier booms is installed on the swamp buggy chassis. The container is engaged to the stern part of the swamp buggy chassis and is flexibly connected with the system of collected oil pumping.

Mover and method of its propulsion / 2460661

Proposed mover comprises platform interacting with bearing surface. Said platform supports frame, gear wheels with bobs, planet carriers fitted on axles and rotation drive. Shaft with central gear wheel is arranged in said frame and engaged with said gear wheels with bobs. Central gear wheel and gear wheels with bobs feature equal diameter. Center of gravity of bobs are located on central wheel radial axis at maximum and minimum distances from wheel rotational axis.

Pulse-inertial propulsor (pip) and packaged pule-inertial propulsor (ppip) for transport facility / 2455187

Invention relates to machine building, particularly, to pulse-inertial propulsors (PIP) and may be used in whatever transport facilities. Said PIP comprises actuator made up of toothed inertial self-equalising polyharmonic vibrator with paired-identical unbalanced gear wheels and shafts are articulated in reducing order in, at least, two identical horizontal rows and mounted in housing bearing wall bearings. Selection of input parameters from recommended ranges for increase in asymmetry of directed inertial force allows over tenfold increase in quasistatic traction force of forward motion with respect to reverse motion. Besides, provided is PPIP for transport facility incorporating PIP in parallel or serial connection. Both PIP and PPIP has bearing surfaces equipped with fasteners for rigid joint there between.

Walking wheel of vehicle of increased cross-country capacity / 2455172

Invention relates to walking wheels and may be used for motion of steps. Proposed walking wheel comprises central gear wheel attached to transport facility body, plane pinions turning there inside and fitted on planet carrier in counter phase, and two paired supports with convex thrust sectors made by circle arcs. Thrust sectors are pivoted to said supports in vertical plane and spring loaded relative to support to perform elastic turn there around. Pivot is secured on support axle at the center of sector curvature.

Automater method for forest fire localization / 2245179

FIELD: transport.

SUBSTANCE: invention relates to ship propulsors. Screw drive consists of even number of hollow cylinders with helices at generatrix and float cylinders. Every helix has, at least, two-point articulation with appropriate hollow cylinder. Said articulation allows said helix to run around float cylinder in both directions. Float cylinder doubles as helix stator. Only helix is rotated by drive in said float cylinder-with-helix assembly.

EFFECT: higher speed.

2 cl, 1 dwg

The invention relates to marine propulsion devices to advantage.

Known screw vehicle /see, for example, driving, 2011, No. 12 (966), p.260-262/consisting of even number of hollow cylinders with welded spirals on form - screw driven in rotation from the engine, including marine installation.

When the primary advantage of such propulsion - buoyancy screw vehicle remains low-speed marine propulsion, as the screw is made according to the classical scheme is a hollow cylinder of a standard form with welded spiral generatrix.

To correct the noted deficiency in the screw vehicle, consisting of even number of hollow cylinders having a spiral on a generatrix, each helix with a corresponding hollow cylinder has at least a two-point kinematic relationship that allows you to rotate with reverse spiral around a cylinder-float, which serves as a stator of the helix, and the rotation of the screw-float spiral drive is transmitted only on the spiral. When this cylinder-float screw vehicle can be any optimal hydrodynamic relation to the float variable length is not necessarily similar to the cross-section. When this hollow cylinder having a spiral on a generatrix, can be perforated and/or contain a spiral guide groove on the inner surface of the hollow cylinder.

On h is rage presents structural diagram of the undercarriage of the screw vehicle.

Suspension of the screw vehicle is a hollow cylinder 1 having a coil 2 for generating rotated by a drive (not shown) around the front of the float 3, employee of the stator hollow cylinder 1 spiral 2. The front of the float 3 can be any optimal hydrodynamic relation to the float variable length is not necessarily similar to the cross-section. The hollow cylinder 1 having a spiral 2 forming, can be perforated and/or contain a spiral guide groove (not shown) on the inner surface of the hollow cylinder.

Dividing constructive suspension of screw vehicle on the stator cylinder-float responsible for the buoyancy of the screw vehicle, and a rotary hollow cylinder with a spiral on a generatrix that is responsible for the speed of the screw vehicle, the proposed technical solution:

1) improve the maintainability and/or replacement of components of the running gear of the screw vehicle;

2) maximising optimal hydrodynamic relation to the profile of the float (in the prototype float is always a body of rotation);

3) facilitate rotary part (in the prototype rotor and the stator is always one), that (with the same drive power) will allow you to win in the speed of rotation of the hollow cylinder, i.e. will increase the speed of the screw vehicle; to facilitate the rotary part of the proposed technical solution, with wit also perforated hollow cylinders;

4) increase the speed of the screw vehicle by improving the hydrodynamics in the system of a rotary hollow cylinder with perforations and/or spiral guide groove on the inner surface of the hollow cylinder - stator the front of the float.

A basic element for the manufacture of a rotary part of the proposed screw vehicle can be, according to the applicant, structurally and technologically viable size of the area.

Thus, according to the applicant, the proposed solution is new, involves an inventive step and is industrially applicable.

1. The screw vehicle, consisting of even number of hollow cylinders having a spiral on a generatrix, wherein each spiral with a corresponding hollow cylinder has at least a two-point kinematic relationship that allows you to rotate with reverse spiral around a cylinder-float, which serves as a stator of the helix, and the rotation of the screw-float spiral drive is transmitted only on the spiral.

2. The screw vehicle according to claim 1, characterized in that a hollow cylinder having a spiral on a generatrix, can be perforated and/or contain a spiral guide groove on the inner surface of the hollow cylinder.