SU823949A1 - Device for ground sampling - Google Patents

Description

(54) DEVICE FOR SELECTION OF SAMPLES OF GROUND

one

The invention relates to technical means for laboratory and field work on the study of soils and can be applied in agriculture, as well as in construction and geology.

A device is known that includes a housing made in the form of a two-piece bucket with a hydraulic drive of a movable transverse wall, and a cover for the bucket, 1.

The disadvantage of the device is that the walls of the bucket squeeze the soil, breaking its structure.

Closest to the present invention is a device for sampling soil, including a frame, a lever mounted on a drive shaft and a drill attached to it. When rotating, the drill periodically enters the ground and fills, and when it reaches a vertical position through the other extended end, the soil is poured out of it into an adapted container 2.

The disadvantages of the known device is that the drill does not enter the soil vertically when working, with its viewing, since the end of the drill and the surface point of the wheel describe a circle of different lengths, and this

leads to additional loads of the drill and parts of the drive mechanism, as well as to the useless expenditure of power of the power unit.

The purpose of the invention is to improve the quality of samples and reduce energy consumption.

This goal is achieved by the fact that the lever is mounted rotatably with respect to the shaft and is provided with a spring rigidly connected to the shaft, and the shaft is provided with a lever rotation limiter.

FIG. 1 shows the device, a general view; in fig. 2 - installation of the lever with the drill on the drive shaft.

Claims (2)

The device consists of a frame 1, to which the side conveyors 2 are fastened to provide the necessary grip width, according to the method, and the soil samples to mixer 3. The conveyors 2 on the frame 1 of the tractor are hinged and connected with hydraulic cylinders 4, which, if necessary, are used as additional weight handlers and for transferring the working bodies to the transport position. At opposite ends of the conveyors 2 supported on the casting wheels 5, nodes are installed with the drive shaft 6 and the drill 7 fixed to the lever 8. The lever 8 anovlen respect to the shaft 6 rotatably around the circumference. A rotation limiter 9 of the lever 8 is mounted on the shaft b. The limiter 9 can be made, for example, in the form of a flange with grooves around the circumference. The spring 10 is fixed at one end to the lever 8, and the other is connected to the shaft 6 directly or through the stop 9. Between the conveyors 2 below the axis of their driving drums, a mixer 3 of soil samples with a screw is installed. A hatch with a lid is provided in the bottom of the mixer housing 3 for taking an average sample B container 11. A counter (not shown in the diagram) is connected synchronously with the shaft 6 to automatically calculate the soil samples. The device operates as follows. When the tractor is moving with the help of hydraulic cylinders 4, the conveyors 2 are installed to the working position, i.e. on the copying wheels 5. A drill 7 is turned on. The torque from the tractor's synchronous power shaft is transmitted to the shaft through a chain drive, 6 with a stop 9. The drill 7, in this case, makes circular motions and, in the lower position, goes deeper into the ground to a predetermined depth It is filled with it, and when the upper position is reached, the sampled sample is poured into the receiving hopper and fed by conveyor 2 to mixer 3. In mixer 3, the sample is shuffled and fed to the center. When sampling 190-200 samples, which is determined by the counter, the soil from the mixer drops into container 11. After a certain number of samples have been collected, the cycle is repeated. The introduction of the drill 7 is carried out as follows. At the next approach of the end of the drill 7 to the surface, due to the grooves in the flange, the stop 9 and the extension of the spring 10, the lever 8 loses the possibility of entering the ground from the rotational motion, and deepens by the tractor hitting it. Upon reaching the vertical position of the lever 8, the drill 7 is deepened completely to a predetermined depth. When the drill 7 leaves the ground with the spring 10, the lever 8 is set to its original position. The invention includes a device for sampling soil, including a frame, a lever mounted on a drive shaft, and a drill attached to it, characterized in that, in order to increase the quality of samples and reduce energy costs, the lever is provided with a spring rigidly connected to the shaft and installed rotation relative to the shaft, and the shaft is provided with a lever rotation limiter. Sources of information taken into account during the examination 1. USSR author's certificate No. 521495, cl. G 01 NM / 20, 1971. 2. Journal of Plant Protection, No. 12, 1975, p. 36 (prototype). G / X N / XVX / Nr / XN //; / XVX / VrAVy Figure 1 Yu 2