CN2149494Y - Self-lubrication mud pump for dring - Google Patents

Abstract

The utility model discloses a self-lubrication mud pump for drilling. The self-lubrication mud pump for drilling is characterized in that an oiling nipple and an oil passage which are communicated with an oiling piston rod and an oil transportation passage in a cleaning shielding oil leather cup are arranged on a piston pull rod; an extrusion spring and an oiling leather cup are arranged on the oiling piston rod; spring tension is utilized to continuously convey lubrication oil to lubricate between a cylinder sleeve and a piston. The self-lubrication mud pump for drilling guarantees that the mud pump for drilling normally operates without water spraying lubrication, saves electro-dynamic pumps, pipelines, and water tanks, enables the cylinder sleeve and the piston to clean without pollution, eliminates friction and abrasion caused by mud, extends the life time of 2 to 3 times, and can drill wells at desert zones where have no water or a little water.

Description

Self-lubrication mud pump for dring

Discharge mud when the utility model belongs to oil or gas drilling and use the pump field.

Three cylinders or double cylinder slip pump are a large amount of equipment that use in the current well drilling industry, research and development department of U.S. TRW Mi Xing manufacturing company (TRW Mission Manufacturing CO) manager S.L. Robert Collier has been delivered one group of series article (1981-1982) on " world oil " magazine, intake system to triplex pump, pump valve characteristic, piston motion, charge pump and air tank etc. analyze and discuss, and proposed some and meet on-the-spot actual effective measures; The employing river Stone steles triplex mud pump that China is comparatively general, this three cylinder single action piston pumps of producing must be with adding the cooling of motor-drive pump water spray lubrication both at home and abroad, when changing cylinder sleeve, discovery has a large amount of mud to bring the spray water tank into, silt in the water tank is constantly sprayed between cylinder sleeve and the piston by motor-drive pump again, increased friction and wear, thereby make the lost of life of cylinder sleeve and piston, owing to a large amount of spraying waters silt that mixing enters slide block, on the parts such as intermediate bar, Sealing has also been produced bigger friction and wear, cause the Sealing gap to increase, part mud enters transmission part, make the oily contamination and deterioration of transmission system, also influence the normal running and the safe handling of slurry pump.

The purpose of this utility model is to provide a kind of selflubricating single-acting drilling mud pump at the deficiencies in the prior art, solved the pollution problem that brings with the spray lubrication piston for a long time, motor-drive pump, pipeline and water tank have been saved, overcome the pollution problem of silt to cylinder sleeve, piston and transmission part, reduced friction and wear, improve the working life of equipment, reduced labor intensity, can be widely used in the drilling well work of the desert area of anhydrous or few water.

Selflubricating single-acting drilling mud pump such as Fig. 1 that the utility model provides, shown in Figure 2.

Fig. 1 is a selflubricating single-acting drilling mud pump structural representation.

(1) cylinder sleeve, (2) plunger

Fig. 2 is a drilling mud pump piston structure schematic representation

(3) piston iron core, (4) piston pulling rod, (5) intermediate bar, (6) piston cup, (7) leather cup back-up ring, (8) snap ring, (9) seal ring, (10) cleaning retaining outermost layer of skin bowl, (11) back-up ring, (12) rubber, (13) nut, (14) oiling is chewed, (15) oiling piston rod, (16) spring, (17) oiling leather cup, (18) nut.

Self-lubrication mud pump for dring contains cylinder sleeve (1) and plunger (2) two large divisions. Plunger is by piston iron core (3), and it is an integral body that pitch brace (4) and intermediate bar (5) connect to form. Be equiped with piston cup (6) on the piston iron core (3), leather cup back-up ring (7), behind snap ring (8) chucking, on the step of pitch brace (4), install sealing ring (9), cleaning gear outermost layer of skin bowl (10) and back-up ring (11), again the piston iron core is used the nut (13) with locking rubber (12) to be fastened on the pitch brace (4), pitch brace is provided with oiling and chews (14), oil transportation road conducting in oiling piston rod (15) in oil duct and the pitch brace and the cleaning gear outermost layer of skin bowl (10), extrusion spring (16) is arranged on the oiling piston rod, oiling leather cup (17), be fixed on the oiling piston rod (15) with nut (18), the other end of pitch brace is connected with bent axle with slide block by intermediate bar (5), and is moved back and forth by the Diesel Driven plunger.

Self-lubrication mud pump for dring is to realize like this, lubricating oil chewed from oiling fill with whole oil duct oil storages, fastening cock, behind the jiggering, start diesel engine, the plunger that drives drilling mud pump is reciprocating in cylinder sleeve, the oiling piston rod utilizes spring tension to push lubricating oil to each oil transportation road, the gap that lubricating oil is constantly supplied with between cylinder sleeve and the piston slowly is lubricated, the air cooling, to guarantee equipment safety operation, check valve enters cylinder sleeve to mud, plunger promotes mud and discharges from the discharge check valve on the cylinder sleeve by sucking.

The utlity model has following advantage:

1. it is lubricated to adopt self lubricating system to replace spraying water, has saved motor-drive pump, spray pipe and water tank, makes cylinder sleeve and piston cleaning and pollution-free, has eliminated the friction and wear that silt brings, and prolongs service life of equipment 2-3 times.

2. not water spray lubrication has overcome air and has entered cylinder sleeve, has avoided water hammer, and air cooling can have remarkable economic efficiency and social benefit in the desert area drilling well of anhydrous or few water.

Embodiment:

The selflubricating single-acting drilling mud pump that the utility model provides is simple in structure, easily manufactured, cylinder sleeve, piston iron core, piston pulling rod, intermediate bar and oiling piston rod etc. all can be in the manufacturing of common mechanical manufactory, standard piece such as diesel engine, link, leather cup all can be bought in the shop, and engineers and technicians that this is professional or oldhand just can be by figure assembling, debugging and ordinary production.

Claims (1)

1. A kind of selflubricating single-acting drilling mud pump, contain cylinder sleeve and plunger, the plunger that it is characterized in that this drilling mud pump is by piston iron core (3), piston pulling rod (4) and intermediate bar (5) connect to form, be equiped with piston cup (6) on the piston iron core (3), leather cup back-up ring (7), behind snap ring (8) chucking, on the step of piston pulling rod (4), install seal ring (9), cleaning retaining outermost layer of skin bowl (10) and back-up ring (11), again the piston nut (13) that has locking rubber (12) of using unshakable in one's determination is fastened on the piston pulling rod (4), piston pulling rod is provided with oiling and chews (14), oil transportation road conducting in oiling piston rod (15) in oil duct and the piston pulling rod and the cleaning retaining outermost layer of skin bowl (10), extrusion spring (16) oiling leather cup (17) is arranged on the oiling piston rod, be fixed on the oiling piston rod (15) with nut (18), the other end of piston pulling rod is connected with bent axle with slide block by intermediate bar (5), and by the to-and-fro motion of Diesel Driven plunger.

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