Anti-loosening method for valve deck of drilling pump

A drilling pump and valve cover technology, which is applied to the components of the pumping device for elastic fluid, pump components, variable displacement pump components, etc. To avoid problems such as mud leakage, it can prevent loosening, improve continuous normal working time, and facilitate operation.

Active Publication Date: 2015-06-17
BAOJI PETROLEUM MASCH CO LTD +2
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preventing the bonnet of the drilling pump from loosening, which solves the problem that the bonnet of the hydraulic cylinder is easy to loosen during the operation of the drilling pump, and the sealing of the bonnet fails, which leads to the leakage of the mud of the drilling pump.

Method used

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  • Anti-loosening method for valve deck of drilling pump
  • Anti-loosening method for valve deck of drilling pump
  • Anti-loosening method for valve deck of drilling pump

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] refer to Figure 1-Figure 7 , the anti-loosening method of the drilling pump valve cover of the present invention adopts an adjustable anti-loosening device, and the structure of the adjustable anti-loosening device is:

[0028] A valve cover 2 is installed in the threaded hole on the upper part of the hydraulic cylinder 1 of the drilling pump equipment, (parts 1 and 2 belong to the components on the drilling pump equipment), and a stop disc 4 is installed on the upper circumference of the valve cover 2, and the stop disc 4 A plurality of screws 3 are radially fixedly connected to the valve cover 2 (the anti-retraction disc 4 and the valve cover 2 can also be made into one); there is a threaded hole on the side of the main hole on the upper part of the hydraulic cylinder 1, through which a Fixed cylindrical pin screw 8, the fixed cyli...

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Abstract

The invention discloses an anti-loosening method for a valve deck of a drilling pump. Depending on an adjustable anti-loosening device, the anti-loosening method comprises the steps that first, a retaining disk is mounted on the valve deck; second, the adjustable anti-loosening device is assembled; third, a push rod is adjusted to tightly press the retaining disk; fourth, a locking steel wire is led out from rectangular holes from an ejection screw to the two sides of the rear portion of a swing pressing block, so that the ejection screw is subjected to anti-loosening fixation. According to the method, anti-loosening is conduced on the valve deck of a hydraulic cylinder, due to the fact that a mechanical anti-loosening method is adopted, a valve deck thread can be effectively prevented from loosening under the condition that the drilling pump operates, the phenomenon that a valve plug sealing ring leaks due to the looseness of the valve deck is effectively avoided, and the operating reliability of the drilling pump is improved.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling equipment, and relates to a method for preventing loosening of a valve cover of a drilling pump. Background technique [0002] At present, the plugs of the discharge valves in the hydraulic end assembly of drilling pumps all adopt the bonnet compression form of large-pitch trapezoidal thread. Since the internal mud pressure is high and there are large pressure fluctuations when the drilling pump is working, the bonnet The thread is easy to loose due to vibration, so that the plug of the bonnet is not tightly pressed, and the sealing ring of the bonnet fails quickly, which leads to the leakage of the mud of the drilling pump, the product quality and the efficiency of the drilling operation are significantly reduced, and it also pollutes the environment. Contents of the invention [0003] The purpose of the present invention is to provide a method for preventing the bonnet of the drilli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/00F04B53/10F04B53/16
Inventor 李永飞周小明廖刚王军伟孙建田占川
Owner BAOJI PETROLEUM MASCH CO LTD
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