Full-length vibration excitable component device for measuring strength of rock and cementitious material
Disclosed is a full-length vibration excitable component device for measuring the strength of a rock and a cementitious material. The device comprises a steel rod member ( 1 ), a vehicle body ( 2 ), a vibration motor ( 3 ), a frequency measurement element ( 4 ), and an integrated lead harness ( 5 ); wherein, the steel rod member ( 1 ) has a through slot ( 6 ) in its interior, the vehicle body ( 2 ) is placed in the through slot ( 6 ), and the top of the vehicle body ( 2 ) is provided with a first mounting slot and a second mounting slot. In the device, a steel rod members ( 1 ) such as a reinforcing steel bar and an anchor rod widely used in geotechnical engineering and structural engineering is utilized as “signal generator”, the interior of the steel rod member ( 1 ) is grooved for installing a movable vibration excitation apparatus and a frequency measurement element arranged therein, and the positions of the vibration excitation apparatus and the frequency measurement element are accurately determined by using an integrated lead harness ( 5 ) with scales, thereby realizing operations of performing excitation and signal collection at any position along the full length of the metal rod member. Moreover, the vibration excitation apparatus and detection element of the device can be recycled and reused, thereby facilitating maintenance, such that the detection cost can be significantly reduced.
1. A full-length vibration excitable component device for measuring the strength of a rock and a cementitious material, comprising: a steel rod member ( 1 ), a vehicle body ( 2 ), a vibration motor ( 3 ), a frequency measurement element ( 4 ) and an integrated lead harness ( 5 ); wherein the steel rod member ( 1 ) has a through slot ( 6 ) inside, the vehicle body ( 2 ) is placed in the through slot ( 6 ), and the top of the vehicle body ( 2 ) is provided with a first mounting slot and a second mounting slot; the frequency measurement element ( 4 ) is fixedly mounted in the first mounting slot, and the vibration motor ( 3 ) is fixedly mounted in the second mounting slot; lower ends of the frequency measurement element ( 4 ) and the vibration motor ( 3 ) both run through to a position below the vehicle body ( 2 ); and the integrated lead harness ( 5 ) is fixedly mounted on one side of the vehicle body ( 2 );
the through slot ( 6 ) is designed as a curved wall, and the bottom of the through slot ( 6 ) in the curved wall design is designed as a flat bottom; the steel rod member ( 1 ) has an outer diameter of 28 mm; and the steel rod member ( 1 ) is coupled with the rock or the cementitious material;
the top and sides of the vehicle body ( 2 ) are ach fixedly equipped with a stability guarantee structure ( 7 ); a side of the stability guarantee structure ( 7 ) that is away from the vehicle body ( 2 ) is attached to an inner wall of the through slot ( 6 ); and a main body of the stability guarantee structure ( 7 ) is a wheel disc;
the bottom ends of the frequency measurement element ( 4 ) and the vibration motor ( 3 ) are each fixedly equipped with a magnet ( 8 ), and the bottom of the magnet ( 8 ) is attached to the bottom of an inner cavity of the through slot ( 6 ); and
a surface of the integrated lead harness ( 5 ) is engraved with a scale line, and the frequency measurement element ( 4 ) is powered through the integrated lead harness ( 5 ).
2. The full-length vibration excitable component device for measuring the strength of a rock and a cementitious material according to claim 1 , wherein the interior of the vehicle body ( 2 ) is provided with a driving motor, which powers walking wheels of the vehicle body ( 2 ); the driving motor in the vehicle body ( 2 ) is a servo motor, which is configured to rotate in both forward and reverse directions; and the vehicle body ( 2 ) has a maximum speed of 0.02 m/s.
3. The full-length vibration excitable component device for measuring the strength of a rock and a cementitious material according to claim 2 , wherein a main body of the vehicle body ( 2 ) is a remote-control electric trolley; the interior of the vehicle body ( 2 ) is provided with a power module; and the driving motor and the vibration motor ( 3 ) in the vehicle body ( 2 ) are both powered by the power module.
4. The full-length vibration excitable component device for measuring the strength of a rock and a cementitious material according to claim 1 , wherein one end of the integrated lead harness ( 5 ) is electrically connected to the frequency measurement element ( 4 ) and the vibration motor ( 3 ), and the other end of the integrated lead harness ( 5 ) is electrically connected to an external host.