RU80091U1 - MOTOBLOCK - Google Patents

Abstract

The utility model relates to agricultural machines, namely to multifunctional lightweight units designed for agricultural work in personal plots, in gardens and gardens for individual use. The motoblock contains an engine (1), a running gear (3), a steering wheel with control levers (5), working bodies (4) and a travel stabilizer (14) in the form of a bar with a pointed end. The stabilizer stroke (14) from the pointed end is made saber-shaped and is equipped with wings located above its tip (15). The travel stabilizer (14) is pivotally bolted (13) to the bracket (11) with the possibility of changing its height. Bolt (20) adjust the angular position of the travel stabilizer (14). 5 ill.

Description

The utility model relates to agricultural machines, namely to multifunctional lightweight units designed for agricultural work in personal plots, in gardens and gardens for individual use.

The UMB-K URAL motor-block is known (Zhivchikov MI and others. Small-scale mechanization in a household plot. M., Agroprom, 1986, pp. 10-15), 1 containing an engine, a frame with a reducer, handles with controls, working bodies and a stabilizer of movement, restricting the movement of the walk-behind tractor and representing a vertical bar fixed on the frame at the lower end. A disadvantage of the known walk-behind tractor is the high complexity of the work and the insufficient quality of plowing the soil. The stabilizer is buried in the soil with the help of handles, moving them down. It slows down the walk-behind tractor and makes working bodies go deeper. The resistance to milling cutters varies depending on the density of the soil, the content of humus and moisture in it. These changes are significant even in the same field in neighboring areas, which leads to uneven loading of the walk-behind tractor, jerking, burrowing of cutters. With excessive deepening of the working bodies, the walk-behind tractor stops moving forward. Then the stabilizer is lifted by the handles of the walk-behind tractor, while the working bodies are less deep in the soil. Thus, the depth of plowing is uneven, which reduces the quality of tillage.

The problem solved by the claimed utility model is the development of such a walk-behind tractor in which the structural solution of the stabilizer would ensure smooth movement of the unit on any

soil density.

The problem is solved in that in a motoblock containing an engine, gearbox, control levers, working bodies and a travel stabilizer in the form of a strap with a pointed end, the travel stabilizer from the pointed end is made in a saber shape, pivotally mounted with the possibility of changing and subsequent fixing of its height and angular position and is equipped with wings located above its tip.

The essence of the proposed technical solution is illustrated by drawings:

figure 1 schematically shows a walk-behind tractor, side view; figure 2 is a side view of the stabilizer stroke and options for its possible positions when attached with the sharp end down; figure 3 is a front view of the stabilizer; figure 4 - node holder stabilizer, view in perspective; figure 5 is an option for mounting the stabilizer with a flat end down.

The motoblock contains an engine 1 with a gearbox 2, a running gearbox 3, on the output shaft of which running wheels or cutters 4 are fixed, a steering column 5 with a steering wheel and control levers of the motoblock. The running gear 3 and engine 1 with gear 2 are bolted to a carrier unit that serves as a frame: the steering column 5 and the support 6 of the attachment are attached to the unit. On the input bilateral shaft 7 of the running gear 3, on one side, a pulley 8 of the gear drive 3 is fixed, connected to the pulley 9 of the gear 2 by a belt drive 10. On the other side of the shaft 7, a power take-off pulley (not shown) is attached to additional working bodies (not shown). A bracket 11 with a tubular holder 12 is mounted on the support 6 of the attachment, in which the travel stabilizer 14 is pivotally fixed by a fixing bolt 13, made in the form of a plate, one end of which is saber-shaped. Wings 15 are located above the tip of the plate. Stabilizer

the stroke 14 is provided with holes 16 for changing the height of its fastening in the holder 12. The stops 17 and 18 are welded to the sides of the holder 12 with holes in which the bolt 20 for adjusting the angular position of the stroke stabilizer 14 is freely mounted and axially fixed with a cotter pin 19. On the bolt 20 the adjusting nut 21 is screwed. A tubular cracker 22 is placed in the holder 12, which is rigidly connected with the lead 23 through a slot in the wall of the holder 12. The lead 23 is mounted on the bolt 19.

Before starting the motoblock, a stabilizer 14 is installed in the holder 12 with the cracker 22 inserted in it, with the concave side in the direction of movement at the required height, fixed by the fixing bolt 13. Then, depending on the density of the soil, the angle of entry of the stabilizer 14 to the soil is established. To do this, rotate the bolt 20, while the adjusting nut 21 moves along it and moves the leash 23 along the slot in the holder 12, and with it the cracker 22, deflecting the travel stabilizer 14 placed therein by a predetermined angle around the axis of the hinged fastening of the travel stabilizer 14 with a bolt 13. When adjusting the angular position of the stabilizer 14 due to the curvilinearity of its profile, the ratio of vertical and horizontal forces acting on the entire walk-behind tractor changes. So in position "a" (figure 2) on the stabilizer stroke 14 acts a force directed mainly upward. In this case, the cutters 4 will not penetrate. This circumstance is used on soft soil, for example, when re-passing. In position "b" on the stabilizer 14 acts force, the horizontal and vertical components of which are approximately equal. In this case, a significant downward component is provided, which is used when working on solid soils to better deepen the cutters 4. In position “c”, a mainly horizontal force acts against the movement and increases with increasing

speed of movement. This position of the travel stabilizer 4 is used to move the walk-behind tractor without jerking on soils with changing properties, where the travel stabilizer 14 averages the resistance of the soil and ensures a smoother running of the walk-behind tractor. Stabilizer 14 can be installed in the holder 12 in an inverted form (figure 5). In this case, the field topography is copied.

Claims (1)

A motoblock comprising an engine, a gearbox, control levers, working bodies and a travel stabilizer in the form of a bar with a pointed end, characterized in that the travel stabilizer from the pointed end is made in a saber shape, pivotally mounted with the possibility of changing and subsequent fixing its height and angular position and equipped with wings located above its tip.