Variable moment resonance-free vibro hammer

A vibro hammer (1);

• which is mounted on parts such as steel formed pipes and profiles, and used for driving or extracting these parts to or from the soil;
• and which is able to rotate without resonance;
• essentially comprising
• at least one main body (2) which is placed on the profile that is driven in the soil,
• at least one upper weight set (3) which is mounted to the main body (2) and enables the main body (2) to vibrate,
• at least one lower weight set (4) which is closer to the profile driven into the soil than the upper weight set (3), and which is on the same axis with the upper weight set (3),
• at least one transmission device (5) which enables or obstructs the main body (2) to or from generating vibration when desired by enabling synchronization between the upper weight set (3) and the lower weight set (4), and which, in addition, determines the intensity of the force that the main body (2) will apply on the profile, and characterized by
• at least one hollow transmission body (6) having a cylindrical geometry and a certain wall thickness,
• at least one body tooth (7) which is provided in the inside of the transmission body (6) and along a certain length within the transmission body (6),
• at least one hollow toothed piston (9) having a cylindrical geometry, which is placed at the area where the body tooth (7) is provided in the inside of the transmission body (6),
• at least one external tooth (10) which is provided on the outer periphery of the toothed piston (9) and which operates synchronously with the body tooth (7),
• at least one internal tooth (11) provided in the inside of the toothed piston (9),
• a stepped shaft (12) which is passed through the hollow provided in the middle of the toothed piston (9) and which is a single piece located in the center of the transmission body (6),
• at least one shaft tooth (13) which is provided at the part of the stepped shaft (12) that contacts the toothed piston (9) and which operates synchronously with the internal tooth (11),
• at least one first oil line (14) that enables to transmit the pressure oil;
• which enables the toothed piston (9) located between the transmission body (6) and the stepped shaft (12) to move forward along the axis of the transmission body (6) so as to enable the stepped shaft (12) to rotate more;
• to the aperture between the stepped shaft (12) and the transmission body (6),
• at least one second oil line (15) that enables to transmit the pressure oil;
• which enables the toothed piston (9) located between the transmission body (6) and the stepped shaft (12) to move backward along the axis of the transmission body (6) so as to enable the stepped shaft (12) to rotate less;
• to the aperture between the stepped shaft (12) and the transmission body (6).