Clamping and unscrewing device for iron driller

An iron driller and clamping technology, which is applied in the field of iron driller clamping and unscrewing devices, can solve the problems of complex structure, unstable floating and rotation, and large damage to drill pipes, and achieves good interchangeability and unscrewing movement. Independent, less damage to drill pipe
CN103132933AInactive Publication Date: 2013-06-05JILIN UNIV
10 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN UNIV
Publication Date
2013-06-05
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a clamping and unscrewing device for an iron driller of oil drilling machine. The clamping and unscrewing device capable of clamping and unscrewing a drill stem comprises a support, lifting cylinder, a vertical pin, an unscrewing tongs mechanism, a clamping tongs mechanism, a tongs box and a laminated spring. The unscrewing tongs mechanism and the clamping tongs mechanism are capable of floating through the laminated spring; the vertical pin penetrates through the unscrewing tongs mechanism and the clamping tongs mechanism to be connected with the support so as to achieve the guiding function; a lifting mechanism is formed by the lifting cylinder, the vertical pin and the tongs box; unscrewing tongs and clamping tongs are driven by the lifting mechanism so as to be aligned with connection heads of the drill stem; and the clamping tongs mechanism is capable of achieving the function of clamping the lower drill stem and the unscrewing tongs mechanism is capable of achieving the function of clamping the upper drill stem and then unscrewing the drill stem. The clamping and unscrewing device for the iron driller is simple in structure, convenient to use, stable in operation with little damage to the drill stem, good in parts interchangeability, low in production cost, large in output torque, wide in suitable range for the drill stem, and easy to maintenance owing to the basic separation of lifting, clamping and unscrewing.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to wellhead automation equipment in the petroleum drilling industry, in particular to a clamping and unscrewing device for iron drillers. Background technique

[0002] The iron driller is a kind of wellhead automation equipment. The main function of the clamping and unscrewing device in this equipment is: the lifting mechanism must quickly, smoothly and accurately align the shackle and clamping tongs with the drill pipe joint. The clamp mechanism should clamp the drill pipe stably and reliably. The shackle mechanism should complete the action of unscrewing and unloading the drill pipe smoothly and reliably. The existing iron driller's clamping and unscrewing device has a complicated structure. When the drill pipe is unscrewed, the floating and rotation of the shackle mechanism on the clamping tong mechanism are not stable, which causes great damage to the drill pipe. Contents of the invention

[0003] The purpose of the presen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More