SU1200160A1 - Arrangement for soil sample compaction - Google Patents

Abstract

A DEVICE FOR SEALING PROTECTION OF GROUNDS, containing a base-, a sample cup, a piston, a drummer, a drummer lifting mechanism and its driven platform, a platform stand with a longitudinal bayonet groove and a hit counter, characterized in that, in order to improve performance and seal quality soil samples, the platform is made in the form of a vertically located guide sleeve, equipped with an electromagnetic stopper, and the mechanism for raising the impactor is made in the form of a solenoid placed in the housing, freely set ohm in the guide bushing of the platform and supported on the porschen equipped with shoulders and having internal protrusions at the bottom end interacting with the shoulders of the piston, and in the upper part external protrusions that are opposed to the platform bushing (/) we are electrically are connected.

Description

1 The invention relates to the field of engineering and construction surveys and is intended for the preparation of soil samples before examining their physico-mechanical properties. The aim of the invention is to improve the performance and compaction quality of soil samples. Figure 1 shows the device, a general view; figure 2 is the same, top view; figure 3 - view A (top n part of the rack platform). The device consists of a base 1, a sample cup 2, a piston 3, a drummer 4, a platform 5 of a drum lifting mechanism, a stand 6, and an electronic counter 7 beats. Platform 5 of the impactor lifting mechanism is made in the form of a vertically positioned guide sleeve, and the lifting mechanism is in the form of a solenoid 8 placed in housing 9, freely supported on piston 3 and planted in a guide sleeve with a guaranteed clearance free movement of the housing 9 in the guide sleeve 5. The drummer 4 is made in the form of a rod having a length equal to the height of the solenoid 8. The piston 3 is made in the form of a disk with a cylindrical sleeve equipped with external shoulders 10, and the case 9 with internal shoulders 11 on the bottom. The drive of the platform 5 consists of a bracket 12 of a nut 13 of the lead screw 14 enclosed in a rack 6, a gearbox 15 and an electric motor 16 connected to it. A pa is made on the rack. 17 for an arm 12 having a window 18. The lead screw 14 is equipped with a friction field coupling 19. The outer shoulders 20 are embodied on the housing 9. The limit switches 21 and 22 are electrically 02 connected to the electric motor 16. On the gearbox 15 there is a handle 23 for manually lifting the platform 5 The platform 5 has a stopper 24 driven by. an electromagnet 25. Between the end of the housing 9 and the disc there is a shock-absorbing ring 26. A sample glass 2 is attached to the base 1 by means of a half ring 27 and clamps 28. The device operates as follows. The glass 2 is mounted on the base 1 until it stops in the half ring 27 and secured with clips 28. When the motor 16 is turned on, the lead screw 14 rotates. The friction half coupling 19 rotates with the nut 13 and the bracket 12 in the window 18 all the way against the wall of the groove. When the nut 13 is lowered, the friction half coupling 19 is disengaged. Lowering takes place until the piston 3 is not lying on the ground, the housing 9 is lowered onto the suspension ring 26, and the platform 5 is at a predetermined distance from the shoulders 20. In the extreme position of the platform 5, the limit switch 21 is activated, switches off the electric motor 16 and switches on the electromagnet 25 of the stopper 24, the solenoid 8 and the counter 7 beats. The solenoid 8 pulls in the striker 4. Then the solenoid 8 and the electromagnet 25 are turned off, the hit counter 7 is turned on and the striker falls on the disk, which compacts the ground. The housing 9 is lowered along with the disc. The specified number of strokes is made. After that, the counter 7 beats off the solenoid 8 and turns on the electric motor 16 in the direction of lifting the platform 5. In the extreme upper position, the limit switch 22 operates. and the device is turned off.

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Claims (1)

DEVICE FOR SEALING SOIL SAMPLES, containing a base ·, a sample cup, a piston, a striker, a striker lifting mechanism and its platform with a drive, a platform stand with a longitudinal bayonet groove and a shock counter, characterized in that, in order to improve operational characteristics and the quality of compaction of soil samples, the platform is made in the form of a vertically positioned guide sleeve equipped with an electromagnetic stopper, and the mechanism for raising the hammer is made in the form of a solenoid placed in a housing freely set in directs the platform and the supported sleeve to the piston, provided with shoulders, and having at the lower end of inner projections which interact with shoulders porschnya, and in the upper part of the outer projections interacting with guide sleeve platform, wherein the solenoid and the stopper is electrically connected. >