Internal meshing gear pump for small hole oil pipe plug for oilfield petroleum machinery

A technology of internal gear pump and tubing plug, applied in mechanical equipment, machine/engine, rotary piston pump, etc., can solve problems such as structural size constraints of hydraulic pumps, improve well sealing quality and efficiency, simplify structure, The effect of reducing production costs

Active Publication Date: 2018-11-23
哈尔滨通用液压机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the diameter of the oil pipe, the structural size of the hydraulic pump is greatly restricted, and there is no matching hydraulic pump on the market at present.

Method used

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  • Internal meshing gear pump for small hole oil pipe plug for oilfield petroleum machinery
  • Internal meshing gear pump for small hole oil pipe plug for oilfield petroleum machinery
  • Internal meshing gear pump for small hole oil pipe plug for oilfield petroleum machinery

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation is provided, but the protection scope of the present invention is not limited to the following embodiments.

[0016] Such as Figure 1 to Figure 5 As shown, an internal gear pump for an oilfield petroleum machinery through small hole oil pipe plug related to this embodiment includes: a sliding bearing 3, a left end cover 4, a housing 7, a left floating side plate 8, and an inner ring gear 9 , gear shaft 10, right floating side plate 11, right support 12, right end cover 13, lip seal ring 14, sliding bearing 2 19, full moon support block 20, crescent plate 21, crescent plate fixing pin 22, crescent plate stop Moving pin 23, plug connector 24, motor 25, plug housing 26, oil tank 27 and full moon support block fixing pin 28, one end ...

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Abstract

The invention provides an inner engaging gear pump used for a stopper of a petroleum machinery oil tube with an over-small hole in an oilfield. The other end of a shell body is matched with a right support and then fixedly connected with a right end cap, a full-moon-shaped supporting block is arranged in the shell body, and an inner gear ring is arranged in the full-moon-shaped supporting block; a left floating side plate is arranged on the left side of the inner gear ring, a right floating side plate is arranged on the right side of the inner gear ring, and a right support is arranged between the right floating side plate and the right end cap; a lip-shaped sealing ring is arranged between the right support and the right end cap, a gear shaft is eccentrically arranged in the inner gear ring and engaged with the inner gear ring, and a first sliding bearing is arranged among the shell body, the right support and the gear shaft; a second sliding bearing is arranged among the left floating side plate, the right floating side plate and the gear shaft, a crescent-shaped plate is arranged between the gear shaft and the inner gear ring, and a crescent-shaped plate fixing pin is arranged between the left floating side plate and the right floating side plate; and a crescent-shaped plate stopping pin is arranged between the left support and the right support, and a full-moon-shaped supporting block fixing pin is fixed on the left support and has a fixing impact on the full-moon-shaped supporting block.

Description

technical field [0001] The invention relates to an internal meshing gear pump used for a small hole oil pipe plug for oil field petroleum machinery, and belongs to the technical field of internal meshing gear pumps. Background technique [0002] 1. The existing small hole tubing plugs for oilfield petroleum machinery rely on the impact of high-pressure water flow and the relative action of the blocker’s inertial force to achieve plugging and sealing; the other relies on the upward pulling force of the wire rope to squeeze the sealing rubber tube Deformation achieves plugging and sealing. The above-mentioned device is prone to uneven force on the sealing rubber cylinder, which leads to the phenomenon that the seal is not tight. 2. Combining the stopper with hydraulic technology, and using the hydraulic pump to drive the hydraulic cylinder to push the sealing rubber cylinder, the force on the sealing rubber cylinder can be uniform and a good sealing effect can be achieved. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C11/00F04C2/10E21B33/126
CPCE21B33/126F04C2/101F04C11/008
Inventor 姜继海孙立峰王爱芳王刚戴达军
Owner 哈尔滨通用液压机械制造有限公司
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