Drill rod displacement triggering mechanism

Abstract

The invention discloses a drill rod displacement triggering mechanism. The drill rod displacement triggering mechanism comprises a driving sliding block, a limiting block, an amplitude valve body, a hydraulic hole, a valve body shell, a valve body spring, a drill rod, a drill rod sleeve and a drill rod spring; the drill rod is mounted in the drill rod sleeve through sliding fit of a drill rod guiding block and a drill rod sleeve sliding hole, the drill rod spring is mounted on the guiding block, and the drill rod spring plays a role of resetting the drill rod when the drill rod knocks and works in a reciprocating mode; and the valve body shell is mounted on the drill rod sleeve through a first supporting plate, a second supporting plate and a third supporting plate, the amplitude valve body is mounted on the valve body shell, and the valve body spring is mounted between the amplitude valve body and the third supporting plate. In the drill rod displacement triggering mechanism, only after the drill rod applies certain force to an object, the drill rod contracts inwards, an oil circuit can be opened to start a knocking mechanism, as long as the drill rod gets away from the object, the knocking mechanism immediately stops knocking, the phenomenon of idling knocking of the drill rod is prevented, the service life of the drill rod is prolonged, and the good using effect is achieved.

Description

[0001] This application is a divisional application for a patent with an application number of 2016103778339, an application date of May 31, 2016, and an invention and creation titled "A drill rod displacement trigger mechanism for a breaker". technical field [0002] The invention belongs to the technical field of breakers, and in particular relates to a drill rod displacement trigger mechanism for breakers. Background technique [0003] At present, the breaker has a variety of driving modes, such as hydraulic drive, nitrogen drive, nitrogen and hydraulic hybrid drive, and gravity drive. Each drive method is to achieve crushing by hitting the drill rod at a high speed, so that the drill rod has a large kinetic energy in an instant. The effect of the object; when the drill rod is hit, the huge kinetic energy is released by breaking the object, but the drill rod is often separated from the object during work, and the beating is still in progress at this time, and the huge kine...

AI Technical Summary

Problems solved by technology

[0003] At present, the breaker has various drive modes such as hydraulic drive, nitrogen drive, nitrogen and hydraulic drive, gravity drive, etc. Each drive mode is achieved by hitting the drill rod at high speed so that the drill rod has a large kinetic energy in an instant to achieve crushing. The effect of the object; when the chisel is hit, the huge kinetic energy is released by breaking the object, but the chisel is often separated from the object during work, and the beating is still in progress at this time, and the huge beating kinetic energy cannot be released. Hitting will cause great damage to the drill rod, resulting in increased equipment operating costs

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