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 [2], 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 [3], 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.

 

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