Churn screw drill for drilling

Churn screw drill for drilling

  • CN 106,522,829 A
  • Filed: 11/27/2016
  • Published: 03/22/2017
  • Est. Priority Date: 11/27/2016
  • Status: Active Application
First Claim
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1. a kind of drilling well helicoid hydraulic motor that spins, including the by-pass valve assembly (1), anti-lost assembly (2) being from top to bottom sequentially connected,Motor assembly (3), universal axle assembly (4) and driving-shaft assembly (5), it is characterised in that:

  • The universal axle assembly (4) is including universalAxle assembly housing (402) and the universal drive shaft arranged positioned at the universal drive shaft assembly shell (402) inside coaxial line, it is describedDriving-shaft assembly (5) includes water cap (501) and power transmission shaft (503), the universal drive shaft, the water cap (501) and the power transmission shaft(503) pass sequentially through screwed connection to fix;

    Water cap (501) center is provided with main infusion hole, and water cap (501) side is provided with multiple rounded arrays and is uniformly distributedAnd the water cap inlet opening (502) connected with the main infusion hole, circular array that the water cap inlet opening (502) is constituted, instituteState main inlet opening to arrange with the water cap (501) coaxial line, power transmission shaft (503) center offers and the main infusion holeThe liquid supplying passage that lower end is connected;

    During work circulation flushing medium drilling fluid by the by-pass valve assembly (1) into rear streamMotor assembly described in Jing (3) and the universal axle assembly (4) to enter into the liquid by the water cap inlet opening (502) defeatedPassage is sent to be reached in the bit port of drilling tool again;

    Choked flow baffle plate (401), the choked flow baffle plate (401) and the water are installed on the inside of the universal drive shaft assembly shell (402)The external port of cap inlet opening (502) is located at same level height, when the water cap inlet opening (502) turns to the choked flow baffle plate(401) can be covered in by the choked flow baffle plate (401) during place, make total feed liquor area of the water cap (501) diminish.

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