SU909038A1 - Drain-making apparatus - Google Patents

Description

(54) DRAINAGE DEVICE

one

The invention relates to drainage devices and can be used in the peat industry for laying drains during the drainage of a peat deposit.

It is well known drainage, its structure consisting of a chain bar hinged at the top of the tractor frame with a leading top and driven lower sprockets 1.

However, drains, agitated by a known device, have a short lifetime due to the low stability of the walls, which collapse during the passage of technological equipment through them.

It is also known to have a drainage device consisting of a chain bar with a leading upper asterisk and a driven lower hinged in the upper part of the tractor frame of the chain bar, on which the horizontal augers 2 are mounted.

The drawback of the device is that the drains have a low service life due to the low resistance of a part of the walls, which limits the scope of the drainage device.

The purpose of the invention is the expansion of technological capabilities.

The goal is achieved by the fact that in a drainage device, which includes a base machine with a mounted chain tool with a leading upper asterisk and a driven lower, on which

Five sides are fixed horizontal shafts with screw surfaces, which are made in a curvilinear form, with each shaft with a screw surface made in the shape of a hyperboloid, in addition, the shaft with a screw surface can be made barrel-shaped.

FIG. 1 shows a device, side view; in fig. 2 is a view A of FIG. 1 (working body), in which the screws are made of a hyperbolic shape); in fig. 3 - then

15 the same, with the screws in the form of a barrel-truncated cone.

Drainage device for option 1 and option 2 consists of a chain working body 1 with an upper drive sprocket 2 and

20 lower driven sprocket 3, to which the screws 4 are rigidly fixed. Expansion horizontal augers 4 for option 1 are made of a hyperbolic shape with a smooth transition to the lower driven asterisk 3, for option 2 - in the form of barrel-shaped incisal cones, the large base of which is adjacent to the driven asterisk. The chain bar 1 in the upper part is hinged to the frame of the tractor 5. The draining device operates as follows. During tractor 5 operation, rotation from its power take-off shaft is transmitted to the drive sprocket 2, which drives the driven sprocket 3 with the screws 4 through a chain. When the tractor 5 moves, the screws 4 cut the peat out of the deposit and feed it to the driven sprocket 3 and further using a chain to the surface of the deposit. The curvilinear screws 4 expanding towards the driven sprocket 3 make it possible to reduce the stress concentration due to the curvilinear shape, as well as the shear stress in the transition region of the vertical part of the drain to the horizontal part due to the excavation in this area of the peat deposit, which reduces the total stress The state of the peat deposit in this part of the drain increases the stability of the lower part of the walls and the life of the drains. After the passage of the tractor with a drainage device, a vertical rectangular drain is obtained with the horizontal section extended at the bottom. For well-decomposed homogeneous peats, it is preferable to use barrel-shaped screws, since the cross section of the horizontal part of the drain is smaller than that of hyperbolic screws, which reduces the power consumption of cutting and, accordingly, increases the productivity of the device.

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Claims (2)

ue.J For non-uniform, poorly decomposed peats, the hyperbolic shape of the augers should be used, since such a form for these peats is more resistant than barrel-shaped, due to the reduction of the collapse. The application of the invention provides for obtaining drains of a more stable form, which increases their service life. Claim 1. A draining device including a basic machine with a mounted working tool with a leading upper sprocket and a driven lower, on which horizontal shafts with screw surfaces are fixed on both sides, characterized in that, in order to expand technological capabilities, the shafts with screw surfaces are curved. 2. A device according to claim I, characterized in that each shaft with a helical surface is made in the shape of a hyperboloid. 3. The device according to paragraphs. I and 2, characterized in that both shafts with helical surfaces form a curved barrel-shaped surface. Sources of information taken into account in the examination 1. USSR author's certificate number 205805. Cl. E 21 C 49/00, 1964. 2. USSR author's certificate number 463767, cl. E 02 F 5/02, 1972 (prototype). .BUT