SU1232774A1 - Apparatus for making holes in soil - Google Patents

Description

one

The invention relates to the construction, in particular, to devices for the formation of wells in the ground for ramming, driving and lowering piles.

The purpose of the invention is to reduce the energy content.

FIG. 1 shows the proposed device, a general view; in fig. 2 shows section A-A in FIG. one.

The device contains a base machine with a mast 1, a submersible pump 2 with a cap 3, carriage A, a conical leader 5 with a shank 6, a device for extracting in the form of a coil spring 7, a mechanism for twisting the wedge made of gear rack 8, gear 9, an overrunning clutch 10, self-braking of the worm 11, interacting with the worm gear 12. The headgear 3 is provided with a latch 13, cooperating with the stopper 14, mounted on the shank 6, and connected to the carriage 4 by means of the taps 15. The shank 6 is provided with stops 16, fixing the carriage 4 from the axis of the movement. The loader 2 is connected by a cable 17 to a mechanism for lifting and lowering it, which is installed on the base machine. The tail bar 6 is located in the cylindrical hole of the carriage 4 and is installed in the cap 3, and the spiral spring

7 installed in the cavity of the wheel 12 and the outer end is fixed on the wheel mounted coaxially on the shank 6, and the inner end is fixed on the shank. A toothed rack 8 is attached to the mast 1 of the base machine and communicates with the gear 9, which is connected to the screw 11 via an overrunning clutch 10.

The device works as follows.

With a forklift 2, the conical leader 5 is immersed in the ground, while gear 9 interacts with the rail 8 via the overrunning clutch 10 and the worm to 11 transmits the rotation to wheel 12, which twists the spring 7 to twist.

8 is installed on the mast 1 as follows:

o

27

five

50

five

0

five

0

45

74

Because gear 9 engages with the rail 8 at the very beginning of the dive, when the energy expended to immerse the leader 5 is insignificant, which ensures reliable twisting of the spring 7. When the leader 5 continues to be immersed in the ground, the gear 9 is out of engagement with the rail 8, however, due to the fact that the worm to 11 is a self-braking mechanism, the wheel 12 cannot rotate in the opposite direction and the spring 7 cannot unwind, retaining its potential energy after immersing the leader 5 in the ground to the required depth.

At the end of the leader's immersion by the mechanism of lifting and lowering the cable 17, lift the immersion device 2 with the headrest 3. The latch 13 then disengages from the stop 14, as a result of which the spring 7 begins to transmit a torque through the shank 6 to the leader 5. With the further rise, with a cap 3 t gi 15, having pulled out, they take out the leader 5 from the ground. In this case, the vertical extraction force is added up with the torque generated by the force of the swirling coil spring 7, which ensures a reliable detachment of the conical leader from the ground.

During the reverse course of the carriage, the gear 9 again engages with the rail 8, but due to the presence of the overrunning clutch 10 it rotates freely without transferring the rotation to the worm 11

The use of a coil spring with a twisting mechanism in the proposed device allows, without the use of additional mechanisms, without taking additional power and time, to take the leader out of the ground, and thus simplify the construction of these devices and increase the overall efficiency of the formation of wells in the ground.

Fieg

Editor A. Shishkin

Compiled by V. Chunosov

Tehred M. Khodanich Proofreader A. Ferenc

Order 2746/32 Circulation 548 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, F-E5, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (2)

1. DEVICE FOR THE FORMATION OF WELLS IN THE SOIL, containing the machine of the base machine, a loader with a cap, a conical leader with a shank and stops, a carriage, grips, an extraction tool and its drive, characterized in that, in order to reduce energy consumption, the device for extraction, it is made in the form of a spiral spring, the inner end of which is connected with the leader, and the drive is in the form of a twisting mechanism, while the leader's shank is mounted in the carriage with the possibility of rotation around its axis and has a limiter, and the cap EET retainer for interacting with a stopper and a flexible rod connected to the carriage. 2. The device pop. ^ characterized in that the twisting mechanism is made in the form of a gear rack fixed to the mast, a gear kinematically connected to it, _with and placed in a worm gear carriage connected through an overrunning clutch with a gear, while the worm gear of the worm gear is made with a cavity and mounted on the leader shank, and the coil spring is placed in the cavity of the worm wheel and is rigidly connected to it by the outer end. S and „„ 1232774