RU1788145C - Pit tamping equipment - Google Patents

Abstract

Usage: stamping pits. SUBSTANCE: contains a base machine, two guides, a base, a lower door with a rigidly fixed working body, an upper carriage with an automatic pick-and-drop mechanism, a spring accumulator in the form of stops fixed to the guides, a drive plate located under them, placed on the guides under the upper carriage and additional stops spring-loaded relative to the lower carriage. Between the additional stops, spring-loaded rods can be located. 1 C.p. f-ls, 2 ill.

Description

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The invention relates to construction equipment, in particular to mechanisms for the construction of foundations, and is intended for ramming pits. ; A device for ramming pits and a vibro-impact device are known. .. ; . ..; ;

The closest technical solution is a sealing device. soil having a base machine, a cross-arm, guide rods rigidly connected to the cross-arm, Rammer, gripper, support elements with racks,

In known equipment, an increase in impact energy is achieved by increasing the discharge height and ramming mass. This leads to overloading the base machine and, as a consequence, the occurrence of its roll, overturning during operation and maneuvering on soft soils. And with increasing mass, the effect of suction of the working body in the soil increases.

The aim of the invention is to increase the productivity of the installation by increasing energy. Shock by communicating the initial speed to the working body.

This is achieved by the fact that the installation includes a base machine, two guides, a base, a lower carriage with a rigidly fixed working body, an upper carriage with an automatic gripping-reset mechanism, a spring accumulator in the form of a drive plate fixed to the guide stops located under them, additional stops placed on the rails under the upper carriage and spring-loaded relative to the lower carriage. Between the additional stops and the lower carriage, spring-loaded rods are located.

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In FIG. Figures 1 and 2 show a device for ramming pits; the base is rotated 90 °.

The device for tamping pits consists of a base machine 1 (for example, a crane KDN-250), a mast 2 pivotally attached thereto, two guides 3 fixed to the mast, a base 4 rigidly attached to the guides in the lower part; a lower carriage 5c with a rigidly mounted working body b, an upper carriage 7, an automatic pick-up-reset mechanism 8, connected by a cable assembly system 9 with a drive. The device is equipped with a spring accumulator in the form of stops 10 fixed on the guides 3, a drive plate 11 located under it, connected to the hydraulic cylinder 12, placed on the guides under the upper carriage 7 and spring-loaded relative to the lower carriage 5 and additional stops 13. Between the additional stops 13 and the lower carriage 5 are the rods 14 and the springs 15.

Installation works as follows.

, The basic machine through the mast 2 combines the axis of the working body 6 with the necessary place for soil development. In two guides 3, the lower 1 carriage 5 can be moved with a rigidly fixed working body b. The carriages are interlocked with each other by means of an automatic catch-reset 8 connected by the cable system 9 to the drive of the base machine. The engagement of the carriage with the spring-loaded rods 14 and the additional stops 13 are lifted up along the guides 3 until the additional stops 13 contact the stops 10. When the carriages are further raised, the additional stops 13, resting on the stops 10, are lowered and the springs 15 of the rods 14 are pressed. Then the device operator through the automatic capture-reset mechanism 8 disengages the carriages 5 and 7. It is released - on the lower carriage 5 with the working body b under the action of gravity and spring elastic forces, receiving an initial impulse of speed wasp acceleration moves downward along the rails 3 and impinges on the ground, when lifting the working body on

the height is less than the maximum, forced compression of the springs 15 is carried out by the drive plate 11 using the hydraulic cylinder 12. The drive plate 11 abuts against the additional stops 13 and compresses the springs 15.

The upper carriage 7 after resetting the working body moves down under its own weight, the operator makes a capture

bottom carriage 7 by an automatic pick-and-drop mechanism, engagement of the carriages 5 and 7, and the cycle repeats.

The device allows for the same mass of the working body and dump height to increase

impact energy by an average of 20% by reporting an initial discharge rate. By increasing the energy of one stroke, the required number of discharges to form a pit and compact the soil is reduced

at its base, the ramming cycle is shortened and plant productivity is increased. In addition, when working on heterogeneous and weak soils, where the stability of the installation is an acute problem, the process of tamping pits is carried out from a lower lifting height of the working body, but also with a message of the initial discharge speed, while the spring pre-compression is ensured by spring

battery without additional readjustment .. „,. SUMMARY OF THE INVENTION 1. A device for ramming pits, comprising a base Machine,

two guides, a base, a lower carriage with a rigidly fixed rabarchy body, an upper carriage with an automatic pick-and-drop mechanism, characterized in that, in order to increase

productivity by increasing the impact energy by communicating the initial discharge speed to the working body, it is equipped with a spring accumulator in the form of fixed stops on guides,

a drive plate located beneath them, placed on guides under the upper carriage and spring-loaded with respect to the lower carriage of additional stops.

2. The device according to claim 1, the clause being that it is equipped with spring-loaded rods located between the additional stops.