SU1224379A1 - Working member of machine for making mole drains - Google Patents

Description

The invention relates to agriculture, mainly to the hydromeliorative technique used for laying moles, for example, rice fields.

The purpose of the invention is to increase the stability of mole drains to hopping in non-uniform soils and in runes with variable humidity.

FIG. 1 shows a working body of a motodrainer machine, plan view; in fig. 2 is a view A of FIG. 1, in FIG. 3 shows a section BB in FIG. 1-, FIG. 4 and 5 - working body in work; in fig. 6 - form of the mole area in the mouth of the drain {in FIG. 7 is a view of B in FIG. 6; in fig. 8 is a longitudinal section of the mole drain in soils with variable density and humidity or in non-uniform soils.

The working body of the metered-drainage machine consists of a cylindrical body 1 with a conical front part and a damping device 2 installed in the rear part of the cylindrical body 1 and representing a spherical surface formed by elastic plates 3 fixed at one end to the bolster 4, and others - to the surface of the cylindrical body. In the internal cavity of the damping device 2, a ball 5 is placed, attached on one side to the bolster 4, and on the other, to a spring 6 connected to the center of the end surface of the cylindrical body 1. The ball 5 to the bolster 4 is attached with fastening bolts 7. The cylindrical body 1 in the place of attachment to it of elastic plates 3 with the help of bolts 8 is complete with notch 9 to a depth equal, for example, to the thickness of elastic plate 3.

The ball 5 serves to give strength to the damping device, i.e. to prevent the elastic plates 3 and the spring 6 from breaking during the passage of the damping device 2 in the ground and are made with a diameter equal to the diameter of the cylinder at the place of the recess 9. The spherical surface of the damping device 2 is made with a diameter equal to, for example, two diameters of the cylindrical body 1, ensure uniform compaction of mole walls

cavities in non-uniform soils or in soils with variable density and humidity, as well as for flaking and compaction of the mouth of mole drains. The recess 9 is intended so that the elastic plates 3 in the place of their attachment to the cylinder body do not protrude beyond the cylindrical position of the surface of the working body, i.e. to reduce the roughness.

The work of the working body of the machine for drainage of the drain is as follows.

When laying the mole drainage, the base machine backs up to the collector groove and lowers the working body of the drainage machine to a predetermined depth. In the process of moving the base machine, the cylindrical body 1 of the working body is inserted into the soil of the slope of the collector groove 10 and, before the damping device 2 is inserted into the soil, forms the mole cavity 11 with a diameter equal to the diameter of the cylindrical body 1. With further pulling of the working body, the damping device starts to penetrate into the ground 2,

the body of which, expanding and compacting the soil around the mouth of the drain, forms a cone 12, the larger diameter of which is, for example, two diameters of the mole cavity 11

(Fig. 4, 6 and 7).

In connection with the increase in the density of the soil, the forces of resistance to smothing the soil and friction-slip, which counteract the force

the elasticity of the plates 3 and tends to compress them to the axis NS, thereby causing the deformation of the plates 3 and changing the spherical shape of the damping device 2 to the shape of a cylinder with a diameter equal to the diameter of mole cavity 11 (Fig. 5). In this case, the damping device 2, decreasing in diameter, increases in the longitudinal direction along the axis towards

poles S, which causes the spring 6 to stretch, increase the elastic force of the damping device 2. Moreover, the elastic force of the damping device 2 reaches its maximum value when its body takes the form of a cylinder with a diameter equal to the diameter of the cylindrical body 1 (Fig. four

and 5). In homogeneous soils or in soils of constant humidity, the elastic force of the plates 3 and the spring 6 provide compaction of the soil around the mole cavity 11 to the dense type created by the cylindrical body 1. Therefore, in homogeneous soils, the elastic damping device smoothes out the roughness and finally forms mole mole 1 (Fig. five).

With the passage of the working body of the carcino-draining machine in inhomogeneous soils or along a section with variable humidity and density, for example, with higher humidity and less density, its damping device 2 is due to the disturbance of the existing balance of resistance to soil and elastic forces.

2243794

Guests of the plates 3 and the spring 6 begin to unclamp, striving to take on their original spherical shape, thereby compacting the walls of mole 5 cavity 11 to a uniform density, i.e. increasing it in diameter (Fig. 8) Depending on the moisture content and density of the soil, the damping device 2 forms a mole field of variable diameter 1I, the maximum value of which is equal to the diameter of the spherical surface of the damping device.

15 The use of the proposed device will increase the resistance of mole drains and their mouths to collapse and siltation due to uniform compaction of mole walls 20 drainage.

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Claims (2)

1. THE WORKING BODY OF THE CROSS-DRAINING MACHINE, made in the form of a cylindrical body with a conical front part and with a varying cross-section (damping device), characterized in that, in order to increase the stability of mole drains, reliability and simplify the design, the damping device is made in the form a hollow spherical surface formed by a series of plates fixed to the surface of a cylindrical body and provided with a thrust bearing connected to the plates. 2. The working body for π. 1, characterized in that in the cavity of the spherical surface there is a ball attached on one side to the thrust bearing and on the opposite to the elastic element connected to the center of the end part of the cylindrical body.