Device for producing a material column in the ground and method for filling the device

Patent metadata

Field	Value
Publication number	US-2025257541-A1
Application number	US-202519051941-A
Country	US
Kind code	A1
Filing date	Feb 12, 2025
Priority date	Feb 14, 2024
Publication date	Aug 14, 2025
Grant date	—

Abstract

The invention relates to a device for producing a material column, in particular a vibrating tamping column, from a bulk material in the ground, having an infeed pipe, which is designed to be driven into the ground and has at least one material outlet opening at a lower end, a vibrating drive, which is designed to cause the infeed pipe to vibrate and is arranged, in particular, on a lower region of the infeed pipe, a receiving bunker, which is designed to receive a quantity of bulk material and is arranged on an upper region of the infeed pipe, and a compressed air supply device for introducing compressed air into the inside of the infeed pipe. According to the invention, it is provided that a sensor device is arranged, which is designed to detect a filling level of bulk material down to a lower region of the infeed pipe, that the receiving bunker is designed with a closed housing with a closable supply opening for supplying bulk material into the receiving bunker, wherein the supply opening can be closed in an airtight manner by means of a closing device, and that a passage between the receiving bunker and the infeed pipe being arranged below, is open when the bulk material is inserted into the ground, wherein the filling level of bulk material in the infeed pipe can be detected by the sensor device. The invention also relates to a method for filling a device for producing a material column.

First claim

1 . A device for producing a material column, in particular a vibrating tamping column, from a bulk material in the ground, having
an infeed pipe, which is designed to be driven into the ground and has at least one material outlet opening at a lower end, a vibrating drive, which is designed to cause the infeed pipe to vibrate and is arranged, in particular, on a lower region of the infeed pipe, a receiving bunker, which is designed to receive a quantity of bulk material and is arranged on an upper region of the infeed pipe, and a compressed air supply device for introducing compressed air into the inside of the infeed pipe, wherein a sensor device is arranged, which is designed to detect a filling level of bulk material down to a lower region of the infeed pipe, the receiving bunker is designed with a closed housing with a closable supply opening for supplying bulk material into the receiving bunker, wherein the supply opening can be closed in an airtight manner by means of a closing device, and a passage between the receiving bunker and the infeed pipe being arranged below is open when the bulk material is introduced into the ground, wherein the filling level of bulk material in the infeed pipe can be detected by the sensor device.

2 . The device according to claim 1 ,
wherein the closing device has an opening flap on the receiving bunker, which can be adjusted by means of an adjustment drive between an opening position for feeding bulk material into the receiving bunker and a closing position, in which the receiving bunker is sealed in an airtight manner.

3 . The device according to claim 1 ,
wherein the compressed air supply device has a line arrangement having one or more supply openings which open into the receiving bunker and/or the infeed pipe.

4 . The device according to claim 1 ,
wherein the sensor device comprises a filling level sensor, which is designed, in particular, as a radar sensor, an ultrasound sensor and/or a laser sensor.

5 . The device according to claim 4 ,
wherein at least one further filling level sensor is arranged in the receiving bunker for detecting a filling level in the receiving bunker, in particular a maximum filling level in the receiving bunker.

6 . The device according to claim 1 ,
wherein a control unit is arranged, which is connected to the sensor device, and the control unit is designed to control a movement of the infeed pipe and/or a discharge of bulk material into the ground via the at least one material outlet opening as a function of a filling level of the bulk material in the infeed pipe detected by the sensor device.

7 . The device according to claim 6 ,
wherein the control unit is designed to determine when a lower and/or upper limit filling level of bulk material in the infeed pipe has been reached and to indicate this to a machine operator and/or to initiate or terminate filling of further bulk material into the receiving bunker.

8 . The device according to claim 6 ,
wherein the control unit is designed to determine and, in particular, to store the current actual filling level of bulk material in the infeed pipe via a depth position of the infeed pipe in the ground.

9 . A carrier device for a device for producing a material column, in particular a vibrating tamping column, in particular according to claim 1 , having
a carrier vehicle, a mast, which is arranged on the carrier vehicle and is arranged substantially vertically in operation to produce a vibrating tamping column, a mast carriage, which is mounted, so as to be movable along the mast and on which the device for producing a vibrating tamping column is arranged, and a filling device for filling bulk material into a receiving bunker of the device for producing a vibrating tamping column, wherein the filling device has:
a filling carriage, which can be moved along the mast,
a filling chamber formed on the filling carriage, which is designed to receive bulk material,
a closing device arranged on the filling carriage, which closes the filling chamber laterally or at the bottom, and can be adjusted between a closed movement position, in which the filling carriage can be moved along the mast, and an open discharge position, in which bulk material can be discharged from the filling chamber of the filling carriage into the receiving bunker,
wherein a measuring device is arranged by which an actual filling quantity and/or a change in the actual filling quantity of bulk material in the filling chamber can be detected, an actuator is arranged on the closing device, with which actuator the closing device can be opened and closed in a defined manner, and a control unit is arranged, which is connected to the measuring device and the actuator and is designed for the controlled supply of a specific quantity of bulk material from the filling chamber of the filling device into the receiving bunker of the device for producing a vibrating tamping column.

10 . The carrier device according to claim 9 ,
wherein a defined filling quantity can be preset by the control unit, which quantity of bulk material is to be discharged by the filling device to the receiving bunker, and the control unit opens the closing device and closes it again depending on a change in the actual filling quantity of bulk material in the filling chamber detected by the measuring device when the defined filling quantity of bulk material has been discharged.

11 . The carrier device according to claim 9 ,
wherein the measuring device is designed to detect a weight force of the filling device.

12 . The carrier device according to claim 9 ,
wherein the filling carriage is guided along a linear guide of the mast and can be moved on the mast by means of a hoisting cable.

13 . The carrier device according to claim 12 ,
wherein the hoisting cable is guided on the mast via a pulley on which the measuring device is arranged, which detects a weight force as a measure of the actual filling quantity.

14 . A method for producing a vibrating tamping column from a bulk material in the ground, in particular having a device according to claim 1 , having
an infeed pipe, which is designed to be driven into the ground and has at least one material outlet opening at a lower end, and a receiving bunker, which is arranged on an upper region of the infeed pipe, wherein
the infeed pipe is driven into the ground,
the receiving bunker is used to fill the infeed pipe with a quantity of bulk material, and
the bulk material is discharged into the ground via the at least one material outlet opening on the infeed pipe, wherein the infeed pipe is vibrated by means of a vibrating drive and compressed air is introduced into the inside of the infeed pipe by means of a compressed air supply device to support the material flow in the infeed pipe,
wherein
a sensor device is arranged in the region of the receiving bunker, with which sensor device a filling level of bulk material can be detected down to a lower region of the infeed pipe,
the receiving bunker is designed with a closed housing with a closable supply opening for supplying bulk material into the receiving bunker, wherein when compressed air is introduced by means of the compressed air supply device, the supply opening is closed in an airtight manner by means of an opening flap, and,
when the bulk material is introduced into the ground, the filling level of bulk material in the infeed pipe is detected by the sensor device, wherein a passage between the receiving bunker and the infeed pipe being arranged below, is open when the bulk material is introduced into the g

Assignees

• Bauer Maschinen Gmbh

Inventors

• Kukol Jürgen

Classifications

• E02D2600/10

  comprising sensor means · CPC title

• E02D7/14

  Components for drivers {inasmuch as not specially for a specific driver construction} · CPC title

• E02D7/18 Primary

  Placing by vibrating {(vibrators for soil compacting E02D3/046)} · CPC title

• E02D3/08 Primary

  by inserting stones or lost bodies, e.g. compaction piles (sand drains for soil compaction E02D3/10; stressing soil while forming foundations E02D27/28) · CPC title