Idler wheel with additional flanges of harvesting machine crawler truck
SUBSTANCE: wheel consists of a structure including an idler metal wheel itself and two additional flange stops also made of metal wheels and attached to the idler wheel body by the method of electrocontact welding.
EFFECT: increasing the reliability of the running gear.
SUBSTANCE: proposed device comprises guide wheel position regulator. Note here that L-like lever with guide wheel is fitted by slotted joint on the device body fixed support. L-like lever inner cavity is connected via channel in lever support with hydraulic chamber of the cylinder wherein fitted is the piston-separator of fluid and gas. Cylinder air chamber is communicated via main line with automatic selector of compressed air feed fro the machine standard pneumatic system. Piston-separator rod central bore accommodates threaded plug with central bore communicating piston drain radial channel with atmosphere.
EFFECT: automatic tensioning at straight motion and at road curves.
2 cl, 3 dwg
SUBSTANCE: this assy comprises spring secured at road roller suspension. It is rigidly secured by web between pistons at machine body inner board. Spring rod is split-jointed with spacer with working surface follows a circle arc in symmetry about spring central axis to interact with roller fitted by spherical support on master lever axle fixed at balance beam locating axle.
EFFECT: compact design, reliable operation and ease of servicing.
3 cl, 4 dwg
SUBSTANCE: invention relates to automotive industry, particularly, to caterpillar forestry machine. Forestry machine comprises front and rear sections 2, 3, assembly of swinging axles 12 and caterpillar track 20. Front and rear sections are coupled by kingpin. Assembly 12 of swinging axles rests on chassis wheels 14, 15. Caterpillar track 20 runs around said wheels 14, 15 and auxiliary wheel 16 outside said assembly of swinging axles. Auxiliary wheel 16 runs in bearings at front and/or rear section so that when assembly 12 of swinging axles turns caterpillar track 20 is tensioned. Caterpillar track 20 is tensioned by, mainly, auxiliary wheel 16.
EFFECT: perfected caterpillar track.
14 cl, 7 dwg
SUBSTANCE: invention relates to caterpillar vehicles including combat vehicle. Proposed tensioner incorporates planetary gearbox with no pinion carrier with tensioner crank fitted in reduction gearbox central opening. Crank lock is furnished with throw-out indicator. Tensioner indicator is made up of compact resistor coil with moving contact and tensioning electric indicator. Manual backup adjustment pin is arranged outside the vehicle board. Caterpillar track tensioning if performed to signal from driver control board.
EFFECT: compact design, ease of use.
3 cl, 3 dwg
SUBSTANCE: invention relates to track idlers of harvester crawler trucks, for example self-propelled rice-and-grain harvesters and fodder choppers TRACK IDLER OF harvester crawler truck comprises wheel (1), rotating on two bearings (2) with stationary axle (3) fixed in rests (4) having guides (6) with rollers (10). Vertical play of wheel (1) is limited by planks (7) pressed from below to lower flanges of channel beams (8) of crawler truck frame by springs (9). On each guide (6) from the side of channel beam (8) of crawler truck frame, roller (10) is installed which rotates and rests on lower flange of channel beam. Under action of tensioner, wheel (1) moves on rollers (10) over lower flanges of channel beam (8) lower flanges of channel beam.
EFFECT: invention is aimed at lowering force for moving wheel guided over flanges of channel beams of crawler truck frame, as well as at reducing wear of coupled parts - guides and flanges of channel beams of crawler truck frame.
FIELD: transport machinery.
SUBSTANCE: this vehicle contains a framework, guided front wheels connected to a steering shaft, back driving wheels equipped with a semicrawler unit at each sideboard. The semicrawler unit includes a crawler, an idler wheel mounted on a balancer, and hydraulic control system of the idler wheel. Hydraulic system includes two-sheet hydraulic cylinders guided by on/off distribution valves, and hydraulic lines connecting hydraulic cylinders sheets to the distribution valves. Above-piston hydraulic cylinder sheets are equipped with shock springs. Distribution valves are controlled by a spring-return jaw, and are connected to a master form moved by a vehicle steering shaft. Hydraulic system is equipped with pump and pressure flap, as well as pump and drain pressure hydraulic lines. Each on/off distribution valve has four ports. First line is connected to pump delivery section, the second line is connected to drainage, the third line is connected to the above-piston hydraulic cylinder sheet, and the fourth line is connected to the hydraulic cylinder rod side. In its first position, the third line of the distribution valve is connected to the forth interconnecting hydraulic line. In its second position, the first line of the distribution valve is connected to the forth interconnecting hydraulic line, and its second line is connected to the third interconnecting hydraulic line. The master form is formed by two peripheral pits located symmetrically to its central axis.
EFFECT: enhanced vehicle manoeuvrability.
SUBSTANCE: proposed tensioner comprises tensioning wheel running in bearings. Yoke with central bore is arranged on supports. Said bore receives caterpillar tensioning nut screwed on coupling bolt. Said nut tightens via washer cushioning spring thrusting against flange with shaped opening to receive coupling bolt. Centering bracket is arranged on frame with accommodate cushioning spring tightening nut. Nut has opening to accommodate another end of caterpillar tensioning nut. Cushioning spring consists of two assembled springs with separation washer arranged there between with central opening. Coupling bolt passes through said opening. Said spring has lower rigidity compared with second spring, on tensioning wheel side.
EFFECT: reduced dynamic loads on tensioning wheel and caterpillar.
3 cl, 3 dwg
SUBSTANCE: invention relates to machine building, particularly, to vehicles. Proposed method comprises pre-tensioning idle run by guide wheel, creating idle run curvilinear trajectory convex upwards, forming centrifugal forces of inertia, equalising idle run gravity by force of inertia proportional to tank motion speed square. Proposed device comprises caterpillar chain, carrier rollers, guide wheel and tensioning mechanism. Carrier rollers of caterpillar chain idle run are mounted on tank body in vertical plane along the arc to adjust pre-tensioning of caterpillar chin by guide wheel.
EFFECT: reduced resistance to rolling of caterpillar chain idle run.
2 cl, 2 dwg
SUBSTANCE: invention refers to the field of machine building, namely to hydraulically driven crawler shovels. Hydraulic drive of crawler shovel comprises power pumps, control pump, distributor, hydraulic motors of stroke, power hydraulic lines, hydraulic lines of servocontrol with control units, hydraulic cylinders of caterpillar belt tension. Besides between each hydraulic cylinder of caterpillar belts tension and according power hydraulic lines of stroke, there is an additional circuit included, made of two drain check valves, discharge check valve, safety valve and hydraulic lines of servocontrol, at the same time piston cavity of hydraulic cylinder of tension of caterpillar belts is connected to discharge cavity of safety valve and through discharge check valve with discharge hydraulic line of servocontrol, and stem cavity - to drain cavity of safety valve and through drain check valves with power hydraulic lines of stroke.
EFFECT: invention provides for automatic tension of caterpillar belts independently on load on master wheels.
FIELD: automotive industry.
SUBSTANCE: proposed method consists in increasing track ground contact area at preset track length by increasing track width on low load-bearing surfaces and making track edges bevelled. Track ground contact area surface features R-radius-whistler. Track width features convex ground contact surface with radius R. Support rollers can be moved out, along with tract contact area, on circular arc by turning track carriages on frame axles. Caterpillar drive comprises frame with guide wheel and final drive wheel, carriages with shock absorbers and support rollers, rolls and track chains. Track chain consists of pin-jointed tracks with ground grousers that features flanged outer surface. Support rollers are fitted on carriage to move out on circular arc level. Paired support rollers carriages can rotate on frame axles to get track roller ground contact surface located on radius R and are furnished with drive cylinders. Note that guide wheel can move closer to final drive wheel to move track ground contact surface out along radius R with support roller fixed axle.
EFFECT: increased cross country capacity.
6 cl, 10 dwg
SUBSTANCE: set of inventions relates to increasing of heavy tank cross-country capacity on soil and meadow bases and to propulsor design. These are implemented as follows. The platform is arranged at two front and rear pairs of lengthwise caterpillar propulsors arranged one after another to turn in vertical plane and to be turned by power cylinders around mirror plane of the load-bearing surface of the front pair of propulsors in horizontal plane above said platform in ball bearings. Pivots couple said platform with the frame of every pair of caterpillar propulsors. Caterpillar propulsors are spaced apart in said pairs. Frame of the front pair of propulsors is made of two composite inner and outer parts displacing relative to each other. Rubber-metallic caterpillars in every pair of propulsors are convexed in crosswise and lengthwise directions to diameter Dsph by setting the surface of road and guide pneumatic wheels to radius R = Dsph/2-δ.
EFFECT: higher cross-country capacity.
2 cl, 3 dwg
SUBSTANCE: in compliance with proposed method, track-type vehicle running gear is equipped with track flares to extend automatically in motion, two road rollers to make said flares pull out and in.
EFFECT: higher mobility owing to reduced specific pressure on soil.
SUBSTANCE: invention relates to transport machine building, namely, to combat armoured vehicles. All-purpose tracked chassis comprises engine compartment where packaged power plant is installed. This power plant contains primary internal combustion engine the high speed shaft of which is kinematically connected with generator via torsion shaft and speeder. Driving wheels of track propulsors are kinematically connected with power drive of packaged structure. The power drive consists of two final reduction assemblies, two traction motors and planetary gear which are controlled from switches of brake resistor side units. Two power drives, electric heater and generator are installed in additional intermediate compartment. Cooling systems are integrated into cooling system of primary internal combustion engine. In the system of primary internal combustion engine, two electrically driven fans are installed. Ionistors are installed in board electric circuit. In control compartment steering column with electromechanical control of track propulsors traction motors is installed as control devices. Electric energy consumers control is performed using digital information and control system.
EFFECT: lower fuel consumption and probability of engine overheating.
6 cl, 3 dwg
SUBSTANCE: set of inventions relates to method for improving propulsor floatation ability of military equipment - caterpillar tank on loose ground and waterlogged bases and to propulsor arrangement. To improve propulsor floatation ability the caterpillar belts of heavy tank are installed at distance from each other of b=B on ground and B≤1 m on peat. In the device, grousers on outer edges of caterpillar belts are made extending and forming common transversal semicylindrical surface. Box-type body is located inside caterpillar belts between carrying, supporting, jockey and driving rollers. Hull side plates are installed at an angle throughout the height of body thus continuing outlines of gun turret. Through vertical body aperture of gun turret turning circle is located immediately between inside edges of caterpillar belt branches.
EFFECT: improved floatation ability of caterpillar propulsor on loose grounds and peat moors.
7 cl, 8 dwg
SUBSTANCE: wheel-caterpillar propulsor comprises caterpillar track with tacks composed of air pads to run over drive and driven sprockets, side member and road rollers. Caterpillar track is composed of flexible endless straight band whereat mounted at rotational axles of paired pneumatic wheels resting on road at track bottom branch from outer side and on drive rollers arranged at minor spacing from each other on side member bottom side, from inner side.
EFFECT: better flotation on loose soils and traction.
SUBSTANCE: invention relates to automotive industry, particularly, to trucks of caterpillar harvesters with caterpillar propulsors. Harvester truck comprises welded frame, LH and RH caterpillar propulsors. Propulsors comprises guide wheel with tensioner, carriages with lower rod wheels, support rollers, drive sprocket with final drive mounted at side member composed of outer and inner channels enveloped by endless, primarily, reinforced rubber belt with individual drive from drive sprocket via final drive and motorized wheel. Caterpillar propulsors are connected with welded frame with the help of pins and hinges arranged at frame outer sides and inner channels of aforesaid side members. Said frame outer sides and inner channels of side members are articulated with the help of damper composed by compression spring with its ends thrusting against holders. Caterpillar propulsor turn limiters are arranged ay outer sides of welded frame to interact with caterpillar propulsor side member inner channels.
EFFECT: smooth run, longer life.
2 cl, 7 dwg
SUBSTANCE: set of inventions relates to track assembly link and to method of its production, said link being intended for engagement with similar links to make a flexible endless chain running around carrier outer periphery. This link comprises transverse element and two lateral support elements each with support surface to interact with the tire outer surface. One of said support element has inner tail part for connection with transverse element ands outer head part for connection with the former that features larger width compared with tail part. Support element working surface bulges at sides in opposite directions of said support element. Steel sheet blanks 6-12 mm in depth, preferably, 7-9 mm, is subjected to deep drawing for making of said support element.
EFFECT: perfected design, friendly use.
9 cl, 12 dwg
SUBSTANCE: set of inventions relates to automotive industry. Track-type vehicle comprises running gear assy 10 with guide wheel 25, original track 155 and original bush 137. Said assy 10 comprises two tracks 55 coupled by bush 34, guide wheel and clearance 76 between guide wheel top surface and bush. Sleeve comprises bush 37 located to rotate around pin 43. One of said tracks comprises chain wearing running surface. Guide wheel comprises bottom surface 67 to wear against caterpillar chain wearing running surface and top surface 70 wear against said bush. Said top surface is located radially outside said bottom surface at spacing equal to initial height 85 of top surface. Said initial height can make 70-90% of initial wearing surface height. In initial operation, original track contacts with guide wheel without contact between original bush and guide wheel. Thereafter, said original bush contacts with guide wheel.
EFFECT: lower noise and track wear.
11 cl, 6 dwg
SUBSTANCE: invention relates to logger running gear, primarily, with crawler propulsors to be used in forestry. Proposed system comprises bearing frame 1 to carry rotary support round table 2. Crawler propulsor bearing beams 3, 4 are articulated with bearing frame by device designed to change the running gear track. Drive sprockets with their drives, wheels and track assemblies 5, 6 with their tensioners are coupled with sad beams 3, 4. Said device designed to change the running gear track comprises hinges 7, 8 to connect one ends of bearing beams 3, 4 with frame 1 and opposite ends with guides 11, 12 by sliders 15, 16. The latter are fitted in said guides 11, 12. One end of said sliders is articulated with beams 3, 4 while opposite end is articulated with beam drives 13, 14, for example, hydraulic cylinders. Axes of symmetry 19, 20 of guides 11, 12 are directed in radii the length which equals the spacing between axles 9, 10 and 21, 22, respectively.
EFFECT: better cross-country capacity and higher efficiency.
2 cl, 1 dwg
SUBSTANCE: invention relates to logger running gear, primarily, with crawler propulsors to be used in forestry. Proposed system comprises bearing frame 1 to carry rotary support round table 2. Crawler propulsor bearing beams 3, 4 are articulated with bearing frame by device designed to change the running gear track. Drive sprockets with their drives, wheels and track assemblies 5, 6 with their tensioners are coupled with sad beams 3, 4. Said devices designed to change the running gear track comprises pivots 7, 8, 9, 10 to couple beams 3, 4 with sliders 11, 12, 13, 14. Other ends of said sliders are fitted in guides 15, 16, 17, 18 rigidly secured at bearing frame to be displaced thereat by hydraulic cylinders 19, 20, 21, 22. One ends of said hydraulic cylinders are articulated with guides 15, 16, 17, 18 and their opposite ends are hinged to sliders 11, 12, 13, 14.
EFFECT: higher flotation.
3 cl, 1 dwg
FIELD: transport engineering; crawler carriers.
SUBSTANCE: proposed crawler carrier contains engine and transmission compartment and control cabin with seats for crew members in front part of carrier, load-carrying platform arranged after cabin and crawler propulsor including seven pairs of torsion suspensions of track rollers and worm-type track adjuster. Carrier is made to provided higher cross country capacity owing to distribution of full-weight loads under suspension rollers at ratio (1.25-1.45):(1.25-1.45) for first and last pairs of track rollers and where 1/7 th of total load on pair of track rollers is taken for 1.0. Remaining load is uniformly distributed between the rest of five middle pairs of track rollers, with subsequent provision of preliminary static tension force by track adjuster at level of traction force on slope with sift ground.
EFFECT: improved stability of track in guide at increased cross country capacity.