RU2186477C2 - Potato planter - Google Patents

Abstract

FIELD: agricultural engineering. SUBSTANCE: potato planter has hopper with discharge window, vibratory screen located under discharge window, and transverse and inclined belt conveyors adjoining to vibratory screen to define V-shaped chute. Vibratory screen is embraced with belt conveyor and is equipped with tuber layer height sensor arranged above discharge window and adapted for generating belt conveyor actuating signal. Vibratory screen capacity depends on height of tuber layer in hopper. Periodic actuation of belt conveyor by tuber layer height sensor combined with continuously operating vibratory screen allows hopper unit to operate with constant capability regardless of amount of planting material in hopper. Sensor sets required height of tuber layer delivered onto V-shaped chute. EFFECT: increased efficiency by automatic uniform feeding of potato tubers from hopper onto V-shaped chute. 2 cl, 4 dwg

Description

 The invention relates to agricultural machinery, in particular to potato planters.

 Known potato planter containing a hopper, oscillating bottom, pin roller, dispenser and a V-shaped groove [1].

 The disadvantage of this planter is that the dispenser used does not provide a constant amount of tubers supplied, damages tubers and sprouts. Unregulated gravity unloading of the hopper due to its unevenness leads to congestion of tubers in the metering device. This necessitates the presence of an operator to adjust the process.

 The closest in technical essence is a potato planter containing a hopper with an unloading window and a vibrating screen placed under it, to which transverse and pitched belt conveyors are adjacent, forming a V-shaped chute, at the end of which there is a coulter [2].

 The disadvantage of this planter is that the supply of tubers to the V-shaped trough depends on the height of the layer of tubers in the hopper and the slope of the working section. This causes uneven layout of tubers along the furrow.

 The problem to which the invention is directed, is associated with the creation of a potato planter with a higher process efficiency when planting potatoes.

 The technical result from the use of the invention is the uniformity of the supply of tubers from the hopper to the V-shaped groove.

 The technical result is achieved in that in a potato planter containing a hopper with an unloading window, a vibrating screen placed underneath it, adjacent to the transverse and pitched belt conveyors forming a V-shaped chute, at the end of which there is a coulter, the vibrating screen is equipped with a belt conveyor covering it and installed above an unloading window with a tuber layer height sensor for turning on the conveyor belt.

 In this case, the conveyor belt drive is equipped with an overrunning clutch (not shown in the drawing).

 Figure 1 presents a potato planter, side view; figure 2 is the same, a top view; figure 3 - circuit diagram of the inclusion of the conveyor belt; figure 4 is a section along aa in figure 2.

 The potato planter contains a hopper 1 with an unloading window, covering a vibrating screen 2 belt conveyor 3, which is adjacent to the V-shaped groove formed by the transverse 4 and pitched 5 belt conveyors. The vibrating screen 2 is fixed by means of levers 6 to the frame 7 pivotally and connected to a crank mechanism (not shown). An opener 8 is located at the end of the V-shaped chute. The discharge window of the hopper 1 is closed by a spring-loaded shutter 9 having a contact part 10. Above the discharge window, a tuber layer height sensor 11 is installed.

 Potato planter works as follows.

 Planting material is loaded into hopper 1. Turn on the vibrating screen 2. In this case, the vibration is transmitted from the working vibrating screen 2 to the tubers through the material of the stationary conveyor belt 3. The tubers from the hopper 1 are continuously transported to the V-shaped groove in a continuous flow. The height of the tuber layer at the outlet of the hopper 1 is fixed by a tuber layer height sensor 11, electrically connected to the conveyor belt 3. The response height of the sensor 11 is set so that a single-layer uniform supply of tubers from the hopper 1 to the V-shaped groove is provided. The adjustment is made by changing the height of the sensor 11 above the discharge window of the hopper 1. When the tuber arrives from the hopper 1 with a layer height less than that set for the sensor 11 to operate, the shutter 9 lowers and the contact part 10 closes the contacts of the sensor 11.

 Belt conveyor 3 is turned on. The supply of tubers from the hopper 1 will be carried out by the simultaneous operation of the vibrating screen 2 and the conveyor belt 3.

 If the height of the tuber layer at the outlet of the hopper 1 is greater than the set height of the sensor 11, then the shutter 9, rising, with its contact part 10 opens the contacts of the sensor 11 and turns off the belt conveyor 3. In this case, the tuber flows from the hopper 1 to the V-shaped trough due to the operation of the vibrating screen 2. Thus, on the proposed potato planter, automatic maintenance of a constant tuber layer height at the entrance of the V-shaped trough is achieved.

Sources of information
1. USSR patent 297144, cl. A 01 C 9/02, 1967.

 2. Copyright certificate of the USSR SU 1271399 A1 cl. A 01 C 9/02, 1986.

Claims (2)

 1. A potato planter containing a hopper with an unloading window and a vibrating screen placed underneath it, adjacent to a transverse and pitched belt conveyors forming a V-shaped chute, at the end of which there is a coulter, characterized in that the vibrating screen is equipped with a belt conveyor covering it and installed above it a window with a tuber layer height sensor for turning on the conveyor belt.  2. Potato planter according to claim 1, characterized in that the conveyor drive is equipped with an overrunning clutch.

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