Pendant track roller caterpillar machine
(57) Abstract:The invention relates to a tracked agricultural tractors with soft suspension. The device comprises a frame made of hollow spars, made with Windows and brackets welded to the frame rails on both sides of the Windows. The springs are located in pairs on the inside of the spar. Front bearing springs using clamps with bolts attached to the spar. The rear bearing in the Central part thereof is made with a cylindrical socket, and includes a finger located in the hole on the end of an intermediate link, the other end of which comprises a cylindrical socket joint. The track roller pivoted on the axis between the balancers. The opposite end of the rocker also performed with the axis, rotating in the sleeve of the bracket. On the axis in the Central part of fixed leash. The leash is made with forming a hinge element for cooperation with the aforementioned cylindrical socket intermediate. The technical result - protection charms from harmful external influences: sun, moisture, abrasive. 4 Il. The invention relates to a tracked agricultural tractors with soft suspension.Known suspension road wheels tracked Masha the spring. The carriage is located on the axle of the cantilever relative to the hollow spar frame. The carriage takes approximately a quarter of the unsprung mass of the tractor. When transporting hung on the tractor, agricultural machine, the load on the axle increases.The disadvantage of this device lies in the fact that in the process the spring carriage is not protected from harmful external influences: sun, moisture, abrasive. In addition, awesomebest tractor limited by the position of the axle, not at track roller.Known suspension road wheels caterpillar machines , containing elastic elements in the form of torsion. The frame of the machine contains spars with Windows cylindrical shape covering the mentioned torsions which are placed in the pipe connecting the left and right side members of the frame.The position of the spars above the soil surface determines the ground clearance of the machine is one of the main parameters of agricultural machinery. The desired option is provided often the corresponding diameter of the supporting roller, which inevitably entails an increase of the dimensions of the car.Known suspension road wheels caterpillar machines , containing panel is AMA and the other through an intermediate with two shoulders equalizer connected pivotally to the frame. One end of the walking beam pivotally connected with the supporting roller, and the other, also articulated with the intermediate link.The disadvantage of this device is that during operation the spring carriage is not protected from the above external influences.The essence of the invention lies in the fact that in the suspension of the track roller caterpillar machine containing an elastic element in the form located along the frame spring supports at its ends, with one of the supports connected to the frame, and the other through an intermediate with two shoulders equalizer, two shoulders balancer is connected to the frame, with one end of the walking beam pivotally connected with the supporting roller, and the other is also articulated with an intermediate, to protect from harmful external influences such as sun, moisture, abrasive, the frame is made of hollow side members, spar opened with one of the ends, made with Windows by the number of balancers and contains brackets with bushings on each side of the window, the springs are located in pairs on the inside of the spar, the rear support springs in the Central part thereof is made with a cylindrical socket, and includes a finger located in the hole on the end promezutocnie still connected with the axis of the suspension and forming a hinge element, interacting with the named socket, and the other his shoulder made in the form of levers, which are located symmetrically on both sides of the spar and also still associated with the axis of the suspension, with the possibility of rotation in bushings brackets, while the opposite end of the balancer still connected with the ends of the axis of the rink, and the rink is located between said levers balancers.The invention is illustrated by drawings, where Fig. 1 shows a tractor with the proposed suspension; Fig. 2 - element I in Fig. 1; Fig. 3 - section a-a in Fig. 2; Fig. 4 - section b-B in Fig. 2.The frame includes a hollow rectangular spar 1, one ends of which are closed by the cover 2. The bottom shelf of the spar is made with Windows 3, the number of which equals the number of track rollers 4. The track roller is located on the axis 5 with the possibility of its rotation. In the axial direction rink is fixed beams 6 located on both sides of the spar 1 and fixedly mounted on the ends of the axis of the rink 5 use rope 7. The opposite end of the balance weight 6 is similarly attached to the ends of the axes 8 using rope 9. On the axis 8 in the middle and fastened the leash 10. To the side walls of the spar in the window zone 3 is welded to kronstain them bolted together with lids 13. Inside of the spar in the immediate vicinity of the window 3 is located a pair of springs 14 with the supports 15 and 16 at their ends. Bearing 15 on the sides has piles 17 with the screw holes for the bolts that secure it to the side member 1. Bearing 16 in the middle and is made with a groove accommodating the finger 18. The finger 18 in its Central part, is located in the hole on the end of an intermediate link in the form of thrust 19, which passes through corresponding holes in the bearings 15 and 16. The opposite end of the traction bar 19 has a cylindrical shaped socket swivel connection with the leash 10. The leash 10 on the end is made with a return element, for example, in the form of a sphere, located at the named socket thrust 19. Bearings 15 and 16 is made with the tabs for centering springs 14 on their inner diameter. The distance between the hole thrust 19 under the finger 18 and the cylindrical head slot in the opposite end of the thrust regulates the length of the springs 14 when they are installed inside of the spar.The suspension Assembly begins with the open end of the side member 1. In the cavity of the spar entered the assembled unit, which consists of pre-compressed pair of springs 14 with the supports 15 and 16, fixed in the initial position by the thrust of 19. In this position the head thrust 19 concerns support 15 and the finger 18 raspberry in the side member 1 by bolts vmorajivaniem last in the threaded holes of the clamps 17. Then in the window 3 enter the leash 10, the end of which is installed in the slot head thrust 19. Then in the lower part of the leash 10 is injected axis 8 through the holes in the brackets 11, and the lead is fixed in the middle part of this axis. Later in the holes of the brackets 11 are introduced support 12 with the bushings on the axle 8 to put the cover 13 together and bolted to the brackets 11. At the ends of the axis 8 are mounted bogies 6 and secured by bolt using rope 9. The lower part of the rocker is going the same way. Axis 5 installed on it support roller 4 is fixed by bolts on the beams 6 by means of clips 7. Assembly other suspensions produced in the same way.The action on the rink 4 vertical force balancers 6 rotate with the axle 8 and the leash 10, causing displacement of thrust 19. Acting on the support 16 through the finger 18, the thrust causes additional deformation of the spring 14, as bearing 15 is fixed.Sources of information
1. C. A. Rodichev, G. I. Rodicheva. Tractor DT-75. -M.: Higher school, 1974, pp. 123-129.2. Tractor T-180. Guide to construction and operation. V/o "Traktoroeksport), pp. 89-90.3. Auth.St. USSR N 846367, B 62 D 55/16, publ. 15.07.81, - proto is along the frame spring supports at its ends, one of the supports connected to the frame, and the other through an intermediate with two shoulders equalizer, two shoulders rocker pivotally connected to the frame, with one end of the walking beam pivotally connected with the supporting roller, and the other is also articulated with the intermediate link, wherein the frame is made of hollow spars, spar opened with one of the ends, made with Windows by the number of balancers and contains brackets with bushings on each side of the window, the springs are located in pairs on the inside of the spar, the rear support springs in the Central part thereof is made with a cylindrical socket and contains a finger, located in the hole on the end of an intermediate link in the form of thrust, a second end which comprises a cylindrical socket joint, with one shoulder of the balancer still connected with the axis of the suspension and forming a hinge element that interacts with the named socket, and the other his shoulder made in the form of levers, which are located symmetrically on both sides of the spar and also still associated with the axis of the suspension, with the possibility of rotation in bushings brackets, while the opposite end of the balancer still connected with the ends of the axis of the rink, and the rink is located between said levers balancers.
FIELD: mechanical engineering.
SUBSTANCE: invention refers to the field of tractor industry, predominantly to agricultural track-type tractors. The tractor comprises body with frame, external structure and engine-transmission installation with positioned at boards left and right final reduction gears, and two board carriages. Carriages have track chain, track roller groups, front guide wheel and rear carrier-driving wheel mounted on final reduction gear axis. Each of the carriages is structurally independent from body and fitted with longitudinal beam bearing track roller groups. Axis of front wheel which is made bearing is rigidly connected with one end of longitudinal beam. At the opposite beam end the board final reduction gear with rear carrying-driving wheel is fixed. Longitudinal beam is interconnected with body frame via central connection and peripheral resilient suspensions. The resilient suspension is made in the form of angle piece with vertical resilient leg fixed on body frame and horizontal leg fixed on beam of carriage. One of the angle legs has hinge mounting and the other - rigid mounting.
EFFECT: following effect is achieved: simplification of the system of horizontal forces transfer and vertical dynamic loads acting when tractor is working in vertical and horizontal planes.
7 cl, 4 dwg
SUBSTANCE: invention relates to transport machine building, particularly to designs of lever-type fully articulated suspension of caterpillar drive. Proposed suspension comprises idler arm coupled with frame via flexible element and swinging axle aligned with rotational axis of drive wheels (sprockets) of caterpillar drive. Balance lever supporting guide wheels and/or wheels-rollers and/or caterpillar chain sliding guides is coupled with idler arm to swing thereon. In compliance with first version, suspension has drive wheel shaft journals secured between frame brackets. Shaft with drive wheels runs in axle, while idler arm sleeve is fitted on shaft central part that doubles as swinging axle. In compliance with first version, suspension has drive wheel shaft journals secured between frame brackets. "П"-like idler arm sleeve swings on the axle. Idler arm represents a yoke. Shaft with drive wheels runs on idler arm sleeve central part. In compliance with third version, suspension has idler arm arranged at the joint of connection with balance lever that represents a yoke. H-like balance lever incorporates two lengthwise side members interconnected by crosspiece. Balance lever is arranged between arms of the idler arm yoke and coupled therewith to swing relative to transverse axis.
EFFECT: reduced overall dimensions, smooth run of caterpillar drive.
7 cl, 2 dwg
SUBSTANCE: invention relates to machine building. Tank suspension contains tank body, road wheels, arms, torsion bars, shock-absorbers. Rod arms are pivotally connected with axis of one road wheel and pivotally connected this axis of other road wheel via sliding member where the sliding member is capable to be translated along the rod arm. The shock-absorber is connected with rod arm and tank body by hinges.
EFFECT: higher reliability of tank suspension.
SUBSTANCE: invention relates to machine building. Chain track comprises a frame, endless reinforced rubber caterpillar chain, drive sprocket, guide wheel with tensioner, support rollers, crossarm rollers, and support rollers. Support rollers are mounted on carriage engaged with crossarm by guide sleeves and elastic spring interconnected by adjustable-length screw. Crossarm lengthwise section on the frame side is defined along radius "R" with crossarm convex upward. Crossarm rollers are secured on the frame to revolve thereon and rest on crossarm convex side. Crossarm has lateral limiters and thrusts for rollers.
EFFECT: higher reliability.
3 cl, 5 dwg
SUBSTANCE: invention relates to automotive industry, particularly, to caterpillar tractors. Suspension comprises carriage 1, road wheels 3 coupled in pairs by rocker 2, linkage 4, and two interacting surfaces 7, 6. Said linkage 4 is composed of cranked axle 8 and comprises two cranks 9 fitted on central pin 10. Rocker 2 is furnished with bushes 11 and fitted on cranked axle 8 to revolve thereon. In motion on road irregularities, rocker 2 running on cranked axle 8 redistributes loads on road wheels 3 depending upon obstacle height.
EFFECT: higher reliability.
2 cl, 4 dwg
SUBSTANCE: invention relates to crawlers for self-propelled harvesters. Chain track comprises a frame 1, endless reinforced rubber caterpillar chain 2, drive sprocket 3, guide wheel 4 with tensioner 5, support rollers, support rollers 6, and road rollers 9. Road rollers 9 are fitted at carriage 20 coupled with crossbar by means of guide bushes 7 and resilient spring 9. Crossbar lengthwise profile features convex side directed upward for rollers 12 to rest upon. Carriage 10 with crossbar 11 is hinged to frame 1 by flexible links 13 and composed of adjustable-length chain. Rollers 12 of crossbar 11 are arranged to run on separated beam 14 attached to frame 1 by bolts 15, nuts 16 and spring 8. Crossbar 11 is welded to carriage 10 to make common perforated base 19 whereto road rollers 9 are attached. Carriage 10 with road rollers 9 runs over caterpillar chain 2 to follow terrain relief.
EFFECT: efficient operation in extreme conditions.
2 cl, 4 dwg
SUBSTANCE: invention relates to automotive industry and may be used in running gear of, say, tractor, bulldozer or prime mover. K-like carriage represents a welded structure made up of two L-like supports consisting of spaced apart side frames 1, 2 and 3, 4. Said side frames are interconnected by crossbars 6 composed of cylinders or tubes. Side frames 1, 2 and 3, 4 are connected by crossbars 7 at their lower part. Said crossbars 7 are shaped to parallelepiped, clip-like clevises being attached thereto to make end limiters. The latter prevent slippage of caterpillar chain at vehicle turns. Aforesaid supports have bottom hole to receive rocker axle and top hole to receive axle coupled with trolley frame.
EFFECT: perfected design, decreased metal input.
3 cl, 3 dwg
SUBSTANCE: invention relates to logger running gear, primarily, with crawler propulsors to be used in forestry. Running gear comprises bearing frame 1 with levers 4, 5 coupled therewith via axles 2, 3. Equalisers 8, 9 with road wheels 11, 12, 13, 14, 15 are fitted on axles 6, 7 at ends of levers 4, 5. Guide wheels 16 with tensioners and dampers and drive wheels 17 are mounted at said frame. Running gear incorporates device to lock rotation of equaliser 8, 9 around axles 6, 7 composed of rotary levers 19, 20. The latter have their ends articulated at bearing frame to turn in horizontal plane and opposite ends to grip said equalisers. Free ends of rotary levers 19, 20 are shaped to yokes. Hydraulic cylinders have one ends coupled with bearing frame 1 while their opposite ends are articulated with rotary levers 19, 20.
EFFECT: higher efficiency.
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: group of inventions relates to an off-roader suspension system and a suspension of an off-roader propeller. The off-roader suspension system is arranged as independent for each propeller. The off-roader suspension comprises a transverse lever with hinged connection to the upper part of the body and a ball joint in the area of fixation of the specified lever to the support frame near the driving wheel, and a spring fixed between the body and the support frame in its lower part near the support wheel. The spring is installed approximately transversely to the longitudinal axis of the off-roader. Suspension of the off-roader propeller is designed for the off-roader comprising a body, a running gear comprising four caterpillars, which are arranged in pairs and symmetrically in the front and rear parts of the body. Each caterpillar comprises a support frame, a caterpillar band covering the driving wheel and at least two support wheels.
EFFECT: improved stability and smoothness of off-roader travel.
8 cl, 7 dwg