Vertical shaft drill bit for controlling slurry pumping flow

Abstract

The invention discloses a vertical shaft drill bit for controlling slurry pumping flow. The vertical shaft drill bit comprises a rotating machine body, a centrifugal cavity is formed in the rotating machine body, a centrifugal fixing block is fixedly connected between the upper wall and the lower wall in the centrifugal cavity, centrifugal sliding plate cavities with leftward openings and rightward openings are formed in the left side and the right side in the centrifugal fixing block correspondingly, centrifugal sliding plates capable of sliding left and right are arranged in the left centrifugal sliding plate cavity and the right centrifugal sliding plate cavity correspondingly, and the left end face of the left centrifugal sliding plate and the right end face of the right centrifugal sliding plate are fixedly connected with centrifugal sliding plate connecting rods correspondingly. According to the vertical shaft drill bit, the cross-sectional area of a slurry guide cavity is changed, the tightness degree of a connecting rope is changed by centrifugal force firstly, then a left clamping block and a right clamping block get close to each other under the action of elastic force after losing constraint, the cross section area of the slurry guide cavity is increased along with increase of the rotating speed of the drill bit, the slurry pumping effect is improved, meanwhile, thedevice can assist the drill bit in breaking after meeting hard objects, and the construction effect is prevented from being affected.

Description

technical field

[0001] The invention relates to the technical field of drilling equipment, in particular to a vertical axis drill bit for controlling the pumping flow rate. Background technique

[0002] In our daily life, there will always be engineering construction for urban construction, and this special subject needs to be carried out after engineering exploration and design calculations, and the drilling equipment for exploration is very important. Drilling equipment is Refers to the mechanical devices and equipment used in the specific working conditions of drilling construction. It is mainly composed of drilling rigs and mud pumps. Once the pumping is not timely or the pumping effect is insufficient, the construction efficiency will be affected. It is difficult to control the pumping effect of the existing drill bit, usually need to change the pump pressure to change the flow rate, once the pump pressure is unstable, it will block the mud and affect the construction p...

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