Auxiliary tool for disassembling drilling pump and operation steps

A technology for auxiliary tools and drilling pumps, applied in the manufacture of tools, hand-held tools, etc., can solve problems such as shortened service life, high labor intensity, damage or damage to new cylinder liner pistons, etc. Safety factor, effect of safe piston replacement

Inactive Publication Date: 2021-06-25
DONGYING XIN HUALIAN PETROLEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the use of the mud pump, if it is found that the pump pressure drops and the mud leaks, accompanied by the cooling water becoming turbid and the abnormal sound of the leak in the cylinder, it means that the piston has failed and the piston and the cylinder liner need to be replaced. When replacing the cylinder liner The piston needs to be taken out in advance. At present, the existing way to replace the drilling pump piston is to open the front end of the pump under the premise of completely cutting off the power source, spray cover and its fixing parts by using tools such as hammer, crowbar, pipe wrench, and wrench. Take out the cylinder head valve body and accessories, open the tie rod clamp and use multi-person disc pump. This method not only requires the cooperation of multiple people to complete the work, but also takes a long time and is labor-intensive. It is also easy to cause personal injury. Injury accident; use a crowbar hammer to cooperate with prying the piston rod to drive the piston to move to the outlet of the cylinder liner, pull out the old piston rod assembly, remove the old piston from the piston rod and install a new piston, and apply butter grease on the rubber part to push Until the metal part enters the cylinder liner, beat the piston to the joint between the piston rod and the center tie rod, install the clamp to restore the spray cover and other accessories, and use hammers, crowbars and other hitting tools during this process. The early damage or damage of accessories and other parts shortens the service life; the outstanding problem of the old method is that the piston rod and piston can only be forced to move forward by using crowbars and hammers and other smashing tools from the rear end, especially the manual movement of more than ten It takes tons of gearbox to realize the separation of central tie rod and piston rod

Method used

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  • Auxiliary tool for disassembling drilling pump and operation steps
  • Auxiliary tool for disassembling drilling pump and operation steps
  • Auxiliary tool for disassembling drilling pump and operation steps

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specific Embodiment approach

[0042] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention Any modification of the structure, change of the proportional relationship or adjustment of the size shall still fall within the scope of the technical content disclosed in the present invention without affecting the effect and the purpose of the present invention. within the scope covered.

[0043] At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the...

Embodiment 1

[0056] Embodiment 1, combining Figure 9 to Figure 11 In the process of replacing the piston and piston rod of this device, the inner side of the single-acting mud pump is three cylinder liners 5, and the inner side of the cylinder liner 5 is slidingly connected with the piston 4 fixed on the piston rod 6 through the lock nut 3. The piston The end of the rod 6 is connected with the central tie rod through the tie rod clamp; first stop and remove the gas control pipeline of the pump clutch, close the valve of the water pipe on the pump, remove the screw ring of the cylinder head and take out the cylinder head, and drain the drilling fluid in the valve box , The manpower disc pump makes the tie rod clamp and the cooling device at the end of the piston rod 6 be unloaded.

[0057] To take out the piston 4 and the piston rod 6, use the first tool 1 to disassemble the lock nut 3. After the limit card slot is aligned with the lock nut 3, turn the first T-shaped head 102 to drive the ...

Embodiment 2

[0059] Example 2, combined with Figure 9 to Figure 11 In the process of replacing the piston, piston rod and cylinder liner of this device, the inner side of the single-acting mud pump is three cylinder liners 5, and the inner side of the cylinder liner 5 slides with the piston 4 fixed on the piston rod 6 through the lock nut 3 Connection, the end of the piston rod 6 is connected with the central tie rod through the tie rod clamp; first stop and remove the pump clutch gas control pipeline, close the water pipe valve on the pump, remove the threaded ring of the cylinder head and take out the cylinder head, and drain the valve box Drilling fluid, the manpower disc pump makes the tie rod clamp and the cooling device at the end of the piston rod 6 be unloaded.

[0060] To take out the piston 4, piston rod 6 and cylinder liner 5, use the first tool 1 to disassemble the lock nut 3. After the limit card groove is aligned with the lock nut 3, turn the first T-shaped head 102 to make ...

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Abstract

The invention relates to the field of use of drilling pumps in the petroleum drilling industry and replacement of quick-wear parts, in particular to an auxiliary tool for disassembling a drilling pump and operation steps. The auxiliary tool comprises a first tool body, a second tool body, a connector, a lead screw nut and a support frame, wherein the connector and the lead screw nut are installed at the front end and the middle end of the second tool body separately, and the lead screw nut is connected with the support frame in a sliding manner. The auxiliary tool has the advantages that a locking nut can be disassembled and taken out by simply rotating the first tool body for a few turns, and a piston rod and a piston are pulled out through the second tool body, so that the complex process of moving the old piston out of a cylinder sleeve is fundamentally eliminated, the labor intensity of workers is reduced to the maximum extent, and unsafe factors are eliminated; and through switching of independent movement and linkage between the connector and the second tool body, the operation of disassembling the locking nut and pushing and pulling the piston is easily achieved.

Description

technical field [0001] The invention relates to the field of using a drilling pump in the petroleum drilling industry and replacing vulnerable parts, in particular to an auxiliary tool for disassembling a drilling pump and operation steps. Background technique [0002] Drilling pump refers to the three-cylinder single-acting mud pump commonly used in the drilling industry at home and abroad. The single-acting mud pump only completes one suction and drainage action in one cycle of piston reciprocating motion. It is an important part of drilling equipment and is called drilling. The heart of the equipment. It is also the weakest part. The time-effect analysis and statistics of domestic and foreign drilling prove that about one third of the drilling stoppages are caused by the failure of the drilling pump, and the failure of the drilling pump is concentrated in the fatigue of the piston and cylinder liner. The scraping and abrasion of mud and gravel cause seal failure. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/02
CPCB25B27/023
Inventor 王建亭张天保李振华李佃波
Owner DONGYING XIN HUALIAN PETROLEUM MACHINERY
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