RU1806503C - Cultivator - Google Patents

Abstract

Usage: agricultural engineering. Summary of the invention: the cultivator comprises a frame 1 and working bodies 11 mounted on it by means of a hinged parallelogram 11. The upper link 3 of the hinged parallelogram is made of two parts 12, 13, which are connected by a hinge 14. At the hinge 14, stops 15, 16 are mounted on the hinge 14. The cultivator lift mechanism is coupled via a link 21 to the top link 3 of the articulated parallelogram. The attachment point of the link 21 on the upper link 3 is located in the hinge 14 of the connection of the parts 12, 13 or on one of the parts 12, 13. 2 zpp-files, 4 ill.

Description

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The invention relates to agricultural machinery, in particular to tillage tools, mainly to row cultivators.

Figure 1 shows the proposed cultivator in the working position; figure 2 - the same cultivator in the transport position; Fig. 3 shows an attachment of a hoisting mechanism; Fig. 4 is an embodiment of a hoist of a lifting mechanism.

The cultivator consists of a frame 1 and a reducer 2, which is rigidly fixed on the tractor. To the latter, by means of an articulated pair, parallelogram, consisting of both upper 3 and lower 4 longitudinal links and fixed 5, j6 and movable 7.8 hinges, the axle is connected with a support wheel 10 and the working bodyP. The upper longitudinal link 3 of the articulated parallelogram four linker is made of front 12 and rear 13 parts interconnected by a horizontal hinge 14. Parts 12 and 13 of the upper link 3 are equipped with stops 15,16, which abut against each other in a straightened (working) state upper link 3. The lifting mechanism consists of a hydraulic cylinder 17, a shaft 18 with a lever 19 and rockers (leashes) 20 and a link 21. The axle 21 is pivotally connected to the joint 14 of the joint of the upper link 3 of the articulated parallelogram. T ha tetgallnene in the form of a flexible link, for example, a load chain, a steel rope, etc. To immerse the working bodies when working on solid soils, a tension spring is applied, connected with the lower fixed hinge 5 and the hinge 14 of the articulation of the upper link of the parallelogram four-link link,

In another embodiment, the flexible rod 21 can be pivotally connected to one of the parts 12 and 13 of the upper link 3 of the parallelogram four-link circuit near the hinge 14.;

Alternatively, the thrust 21 may be made in the form of a telescopic (rigid) thrust 2 with a compression spring 23. In this case, the spring 23 acts as a loader.

The cultivator works as follows.

When the cultivator moves across the field, its working body 11 loosens the soil. At the end of the rut, the tractor driver includes a hydraulic cylinder 17 for raising the working body 11, which, through the lever 19 and the shaft 18, rotates the leash 20, and the grab 9 and working body 11 are transferred to the transport position. In this case, the working body 11 rises first behind

due to the rotation of the longitudinal links 3 and 4 of the parallelogram mechanism around the fixed hinges 5,6, and then, when the lower longitudinal link 4 touches the stop 24, the upper longitudinal link 3 is folded around the hinge 14, which leads to the rotation of the load 9 with the working body 11 relative to the movable hinge 8. As a result, the working body 11 rises high above the soil surface (to a sufficiently high height) and does not damage the plants when turning the tractor (implement).

When lowering the working body 11 in the working position under the action of the spring

25 and gravity graded 9 upper longitudinal link 3 straightened. At the same time, the articulated parallelogram four-link becomes the usual traditional and has its properties.

The use of the invention reduces the material consumption of the cultivator and also reduces damage to plants during turns of the aggregate.

Claims (3)

The claims 1; A cultivator containing working bodies fixed to the frame by means of a hinged parallelogram, and a lifting mechanism in the form of a hydraulic cylinder, a two-shouldered lever and a thrust, characterized in that, in order to reduce damage to the plants by increasing the transport clearance, the upper link of the articulated parallelogram is made of two articulated parts equipped with stops. moreover, the stops are mounted at the hinge of the connection of the parts of the upper link, and the rod of the lifting mechanism is mounted on the upper link of the hinged parallelogram. 2. The cultivator according to claim 1, characterized in that the attachment point of the thrust of the lifting mechanism on the upper link of the articulated parallelogram is located in the joint of the connection of the parts of the upper link. 3. The cultivator according to claim 1, wherein the attachment point of the thrust of the lifting mechanism is pivotally mounted on one of the parts of the upper link of the articulated parallelogram.  // /// /// /// /// /// /// /// /// /// /) /// /// /, (ri & z , , / x / /// /// ///./// /// /// /// /// figl