SU393984A1 - - Google Patents

Description

DEVICE FOR INTRODUCING LIQUID SUBSTANCES IN SOIL

one

The invention relates to the field of agricultural engineering, in particular to machines for introducing into the soil solutions of chemical chemicals and liquid fertilizers according to the method of injection.

The known device for introducing liquid soil into the soil, including a housing that injects a working body with a spring-loaded piston with a cock clip and a hydraulic cylinder with a gripping device, does not automatically reverse the stroke of the hydraulic cylinder rod, which makes it difficult to control their operation and reduces the performance of introducing liquid substances into the soil.

In the proposed device for automatic reversing the stroke of the power cylinder of the hydraulic cylinder, the injection body is equipped with a spool device, kinematically connected by means of a pull-rod and a spring-loaded rocker arm with a power cylinder of the hydraulic cylinder, equipped with a pusher interacting with the specified rocker arm. In addition, to more quickly switch the spool under the action of the spring of the rocker, one of the rods can be made telescopic.

On fi-g. 1 shows the proposed device for introducing liquid substances into the soil, a general view; in fig. 2 - kinematic connection of the spool device with power shaft

hydraulic cylinders; in fig. 3 - installation of the pusher on the rod of the power cylinder.

The device for introducing liquid substances into the soil consists of a body 1, a working tool 2 with a spring 3, a piston 4 with a cock 5 and with an inlet 6 and 7 outlets. In the upper part of the body, the hydraulic cylinder 8 is strengthened; on the stem of which the gripping device 9 with rollers is fixed

10 and the pusher 1L. The injecting working body is equipped with a spool device 12, the rod 13 of which through the telescopic thrust 14, as well as the thrust 15 and the rocker arm 16 with the spring 17 interacts with the rod

power hydrocylpndra. The lower point of attachment of the springs is below the smallpox 18 of the rocker on the line of its middle polo / kenp, as a result of which the rocker does not have a balanced state in the middle position — the springs tend to return it to one of the extreme positions.

The proposed device works as follows. From the pressure line oil passes

through the spool device 12 through channels 19 into the lower cavity of the hydraulic cylinder 8 (through channels 20 — produced in the upper cavity), its brush rises up, pulling the gripping device 9 out of the bracket 5 with the piston 4. The volume released in the barrel in

Injecting the working body filled with working fluid. Upon further lifting, the gripping device 9 locates on the lugs 21, -which pull the rod out of the engagement with the clevis 5. After being released, the piston 4 rushes down under the action of the compression force of the spring 3, throwing fluid from the outlet 7. At this time, the cylinder of the hydraulic cylinder 8 still moving up. In the initial period of movement of the rod, the rocker 16 is in the extreme right position. When the gripping device approaches the waste protrusions 21, the pusher // presses the rocker 16 with its right protrusion, turning it on the axis 18 and extending the spring 17. The movement of the rocker is transmitted only tam 15 and 14. The rod 13 is stationary until the free motion of the telescopic rod 14 was selected. Alaclo continues to flow into the lower cavity of the hydraulic cylinder 8.

By the time of release of the piston 4, the free stroke of the piston rod 14 is selected, the rocker arm is in an average unbalanced position and deviates to the extreme position from the centerline, affecting the rod 13 of the spool device 12. Now the oil from the pressure line is fed into the upper cavity of the hydraulic cylinder 8, and from lower cavity

oil goes to the drain line. The hydraulic rod 8 changes its direction of movement and begins to move down. Produced automatic reversing of the stroke. When approaching its lower position, the rod of the power cylinder 8 in a similar way, pressing the pusher with the left protrusion // on the rocker 16, after gripping the shackle 5 changes its movement, begins to cock the piston 4.

Subject matter

Claims (2)

1. A device for introducing liquid substances into the soil, including the hull, injecting a working body with a spring-loaded piston with a platoon bracket, and a power cylinder with a gripping device, characterized in that. that, in order to automatically reverse the stroke of the power cylinder, the injecting working member is equipped with a spool device, kinematically connected by means of the pull rod and spring-loaded rocker arm to the stem of the power cylinder, equipped with a pusher interacting with specified beam. 2. The device according to claim 1, characterized in that, in order to more quickly switch the spool under the action of the spring of the rocker arm, one of the pullers is made telescopic. Padovaff liquid 9g.1 f5, iS, 16 / 12 9 ng 2 Sh Fiyoz