SU1387884A1 - Vibratory harrow - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery. The purpose of the invention is to increase operational reliability. The vibratory harrow contains 1 crank-crank mechanism mounted on the frame and two-arm levers 2 that are jointly mounted. The arms of the levers 2 are pivotally connected to the transverse teeth bars 3. The connecting rods are filled in the form of flexible links 7, connected to the shoulders of two levers 2, K, 2, K, 2, K, 2, 3, connected to the shoulders of the two levers, 2, K, 2, K, 2, K, 2 crank mechanism have different radius of rotation. The distance from the hinge connecting the two shoulders lever 2 to frame 1 to the hinge connecting flexible link 7 to the two shoulders lever 2 is directly proportional to the radius of rotation of the corresponding crank 6. When the harrow moves, the bar 3 oscillates from the crank. a gearing mechanism, with the teeth loosening the soil. 3 il. i (L

Description

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This invention relates to agricultural mapping, namely tillage implements with active working bodies.

The purpose of the invention is to increase operational reliability.

FIG. 1 shows a vibratory harrow, top view; in fig. 2 - the same, side view; in fig. 3 - diagram of the harrow.

Vibration harrow contains frame

1c with two shoulder arms 2 pivotally mounted on it, the shoulders of which are pivotally connected with transverse rods 3. On the latter are fixed a tooth

4. On the frame 1 there is a crank mechanism 5, including cranks 6 and connecting rods, made in the form of flexible links 7. The latter are equipped with tensioning devices, made in the form of lanyards 8.

The free ends of the flexible links 7 are pivotally connected by means of sleeves 9 to the shoulders of the two shoulders lever 2. The flexible links 9 are skirted by the rollers 10 mounted on the frame 1, which are mounted by means of the axes 11. The cranks 6 and the two shoulders are located at different level (e) . The cranks of the 6 crank mechanism have a different radius of rotation, while the larger radius of rotation of the crank 6 corresponds to a greater distance from the hinge connecting the two shoulders

2 with a frame 1, up to the hinge connecting the flexible coupling 7 to the two-arm lever 2, i.e. at K, 7 R ,,. Part of the flexible links 7, located after the rollers 10, is placed in the same horizontal plane with the two shoulders of step 2.

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FIG. 2

Vibration harrow works as follows.

During the forward movement of the harrow, the beam 3 is brought into oscillatory motion from the tractor's power take-off shaft (PTO) through the crank drive mechanism 5, flexible couplings 7 and two-arm levers 2. The teeth 4 loosen the soil, while half turn cranks 6 tensile load is tested by one crank. In the subsequent half turn, another rod is loaded. In accordance with this, the load on the crank mechanism 5 and the tractor PTO has a constant direction of the moment of resistance.

Claims (1)

Invention Formula five five 0 0 The vibratory harrow, which contains a crank mechanism mounted on the frame and pivotally mounted two shoulders, levers, whose shoulders are pivotally connected to the transverse teeth bars, and the connecting rods are made in the form of flexible links, one of which is one of the other two arms, which differs from one arm to another, differs from one another. so that, in order to increase operational reliability, another flexible link is connected to the other arm of the two shoulders, while the cranks of the crank mechanism have a different radius of rotation, and the distance is about hinge binding double-arm lever with the frame to a hinge connecting the flexible bond with the double-arm lever is directly proportional to the radius of rotation of the respective crank. / /. Phage