Connecting structure for intermediate flange and rack of drilling pump

An intermediate flange and connecting structure technology, applied in pump components, mechanical equipment, variable capacity pump components, etc., can solve the problems of short life of the intermediate rod sealing ring, contamination of lubricating oil, and penetration of lubricating oil into the cylinder liner cavity, etc. Achieve high precision and ensure easy results

Pending Publication Date: 2021-11-26
黄秀芳
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AI Technical Summary

Problems solved by technology

[0003] But in reality, the life of the intermediate rod sealing ring is very short, and the water (with mud) in the cylinder liner cavity often seeps into the crosshead cavity, seriously contaminating the lubricating oil, and the lubricating oil in the cross cavity seeps into the cylinder liner cavity

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  • Connecting structure for intermediate flange and rack of drilling pump
  • Connecting structure for intermediate flange and rack of drilling pump
  • Connecting structure for intermediate flange and rack of drilling pump

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] The embodiments of the present invention are not limited to the following examples, and various changes made without departing from the gist of the present invention fall within the protection scope of the present invention.

[0038] see Figure 1 to Figure 11, the present embodiment is a drilling pump intermediate flange and frame connection structure, including intermediate flange 1, pressure plate 2, M12 bolt 3, frame 4, O-ring 5, machine tool 6, boring tool disc 7, boring tool Rod 8, comparison intermediate flange 9, boring cutter head 10, machine tool spindle 11, machine tool spindle box 12, M16 bolt 13, flat gasket 14, comparison frame 15, inner hole 1.1, end face 1.2, edge 1.3, O shape Groove 1.4, outer circle 1.5, axis line 1.6, crosshead cavity 4.1, cylinder liner cavity 4.2, inner hole 4.3, crosshead slideway hole 4.4, crosshe...

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Abstract

The invention discloses a connecting structure for an intermediate flange and a rack of a drilling pump, and relates to the field of petroleum engineering equipment, in particular to the connecting structure for the intermediate flange and the rack of the drilling pump. The connecting structure comprises the intermediate flange, a pressing plate, an M12 bolt, the rack and an O-shaped sealing ring. The positioning surface that requires high mutual position of the rack and the intermediate flange is installed and processed at one time, the precision is high, the rack and the intermediate flange are sealed by the O-shaped sealing ring on the circumference, and the connecting structure of the intermediate flange and the rack of the drilling pump can well ensure the high coaxiality precision of the axis of an inner hole of the intermediate flange and the axis of a crosshead slideway hole of the rack; and the high perpendicularity precision of the end face of the intermediate flange and the axis of the crosshead slideway hole of the rack is well guaranteed, the service life of a middle rod sealing ring is prolonged, and the long-standing and difficult problems that muddy water in a cylinder sleeve cavity permeates into a crosshead cavity and lubricating oil in the crosshead cavity permeates into the cylinder sleeve cavity are solved.

Description

technical field [0001] The invention relates to the field of petroleum engineering equipment, in particular to a connection structure between an intermediate flange and a frame of a high-power drilling pump. Background technique [0002] Although the moving mechanisms of drilling pumps and automobiles belong to the crankshaft connecting rod mechanism, the connecting rod journal of the crankshaft cooperates with the big end hole of the connecting rod, and the rotating motion of the crankshaft is converted into the linear motion of the piston through the connecting rod through the plane movement, but the connecting rod The connection method of the small head and the piston is very different: the piston speed of the car is very high, the piston force is small, the small head of the connecting rod is directly connected to the piston, the piston has both axial force and the piston has side pressure on the cylinder liner; the piston of the drilling pump The speed is very low and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/22F04B53/16F04B53/00F04B53/14
Inventor 黄秀芳
Owner 黄秀芳
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