RU187398U1 - The working body of the cultivator - Google Patents

Abstract

The utility model relates to tillage machines, in particular to the working bodies of cultivators. On the thrust bearing, rigidly connected to the stand, a lancet paw is fixed by means of three bolts. The frontal surface of the thrust bearing is made in the form of the rear surface of the lancet paw in its middle part. Between the thrust bearing and the lancet paw, three cup springs are mounted on the mounting bolts, abutting against the left, middle, and right parts of the thrust bearing. The technical result achieved is to ensure the operability of the cultivator on solid soils containing rocky inclusions, by increasing the durability of the blades and working surfaces of the paws of the working body of the cultivator, as well as increasing the degree of crumbling of the soil by the working body of the cultivator and reducing the traction resistance of the tillage unit.

Description

The utility model relates to tillage machines, in particular to the working bodies of cultivators.

Known working body of the cultivator KPS-4 (prototype), containing lancet paw, rigidly fixed to the rack using bolts [Karpenko A.P., Khalansky V.M. Agreecultural machines. Agreecultural equipment. - 5th ed., Revised. and add. - M .: Kolos, 1983. - 495 p.].

The disadvantage of the prototype is that when the cultivator cultivates solid soils containing stony inclusions, the latter repeatedly hit the blades and working surfaces of the paws, causing their fatigue chipping and accelerated wear. As a result of this, a rapid blunting of the lancet paw blades occurs, which leads to a loss in the cultivator's working capacity (the working bodies do not penetrate the soil to a predetermined depth and do not cut the roots of weeds) and increase the traction resistance of the tillage unit.

The technical result of the utility model is to ensure the operability of the cultivator on solid soils containing rocky inclusions by increasing the durability of the blades and working surfaces of the paws of the working body of the cultivator, as well as increasing the degree of crumbling of the soil by the working body of the cultivator and reducing the traction resistance of the tillage unit.

The working body of the cultivator contains a rack with a rigidly fixed in the lower part of the thrust bearing. On the thrust bearing, by means of three bolts, a lancet paw is fixed. The frontal surface of the thrust bearing is made in the form of the rear surface of the lancet paw in its middle part. Between the thrust bearing and the lancet paw, three cup springs are mounted on the mounting bolts, abutting against the left, middle, and right parts of the thrust bearing.

Signs of the prototype, coinciding with the essential features of the utility model, is the presence in the working body of the cultivator of the rack and attached to it in the lower part, by means of a bolted connection, with a lancet paw.

The essence of the utility model is illustrated by graphic material, where:

FIG. 1 - The working body of the cultivator (side view);

FIG. 2 - The working body of the cultivator (front view).

The working body of the cultivator contains a rack 1 with rigidly connected to it in the lower part of the thrust bearing 2 (Fig. 1). On the thrust bearing 2, by means of three bolts 5, a lancet paw is fixed 3. The frontal surface 6 of the thrust bearing 2 is made in the shape of the back surface 7 of the lancet paw 3 in its middle part. Between the thrust bearing 2 and the lancet paw 3, three cup springs 4 are mounted on the mounting bolts 5, abutting against the left, middle, and right parts of the thrust bearing.

The working body of the cultivator operates as follows. When the tillage unit moves along the field in the ν direction (Fig. 1), the lancet paw 2 is buried in the soil to the depth of its processing and performs the cultivation process. In this case, the impacts of hard rocky inclusions contained in the soil on the blades and the working surface of the paws are absorbed by three cup springs 4, which are installed between the thrust bearing 2 and the lancet foot 3 on the mounting bolts 5 and abut against the left, middle and right parts of the thrust bearing 2. Reducing the force impacts on the blades and the working surface of the paws increases the durability of the working body of the cultivator. When this occurs, vibrations of the spring-loaded lancet paws 3. Vibrations helps to self-clean the working surfaces of the lancet paws 3 from sticking soil with plant debris, increase the degree of crumbling of the soil by the working body of the cultivator and reduce traction resistance.

Between the totality of the essential features of a utility model and the achieved technical result, there is the following causal relationship. The installation between the thrust bearing and the lancet paw on the mounting bolts of three cup springs, which abut against the left, middle and right parts of the thrust bearing, provides shock absorption of hard rocky inclusions contained in the soil, on the blades and the working surface of the paw, thereby reducing the force of these blows, which contributes to increase the durability of the working body of the cultivator. In this case, Belleville springs provide the occurrence, during operation, of the vibration of the lancet paw, which contribute to the self-cleaning of the working surfaces of the lancet paw from sticking soil with plant debris, increase the degree of crumbling of the soil by the working body of the cultivator and reduce traction resistance.

Claims (1)

The working body of the cultivator, comprising a stand and a lancet paw fixed to it in the lower part by means of a bolted connection, characterized in that on the back of the paw three plate springs are mounted on the mounting bolts, abutting the left, middle and right parts of the thrust bearing, rigidly connected to the stand, the frontal surface of which is made in the form of the back surface of the paw in its middle part.

Images