CN205918582U - Novel reciprocating type plunger pump power end lubricating system - Google Patents

Abstract

The utility model provides a novel reciprocating type plunger pump power end lubricating system, characterized by comprises joint, lubricated thin oil pipe, elbow connection, straight joint, main oil pipe, bent axle, " O " type circle, rotary joint, bent axle rotary joint, camshaft connecting rod, cross head, cross head pin, small -end of connecting rod tile. Inside the boring of bent axle has the lubricate hole for form the lubricating oil passageway, crankshaft end surface bores threaded hole, is used for connecting bent axle rotary joint, the bent axle rotary joint slot of having got on the bus is used for the installation " O " type circle seals, bore threaded hole on the main oil pipe, the welding is inside the pump case, lubricating oil pipe is used for connecting main oil pipe and required lubrication member, it can 360 rotation to be connected with on the bent axle rotary joint rotary joint is as the external interface of bent axle lubricating oil.

Description

A kind of novel reciprocating type power end of plunger pump lubricating system

Technical field

This utility model patent is related in the reciprocating plunger pump in a kind of conveyance fluid equipment of oil field imitate spm600 pump With the lubricating system device of the big pump of the plug-in reduction box of 1000 type modified models it is adaptable to such pumping installations power end crankshaft-link rod machine The oil circuit of structure lubricating system improves.It is related to oil-gas field drill equipment manufacturing technology field.

Background technology

Plunger displacement pump, due to having the remarkable advantages such as compact conformation, volumetric efficiency height, high pressure huge discharge, has been widely used for The occasions such as oil field drilling is repaiied, cements the well, pressure break.Plunger displacement pump be broadly divided into power end assembly, fluid end assembly, power end lubricating system, The parts such as hydraulic end lubricating system, wherein lubricating system are the necessary factors that big pump continues normal work, in order to reduce kinematic pair Between abrasion, lubricating oil film need to be formed in working surface, to keep the gap between kinematic pair, and take away and produce because of friction Heat, scrap；For big pump, every place having relative motion is both needed to be lubricated, and on the one hand extends making of sealing member With the life-span, on the other hand prevent the operative minor of relative motion, such as crosshead and cylinder liner surface occur killing and burn out because overheated The phenomenon of big pump.Thus good lubricating system is to ensure that the essential condition of big pump normal continuous operating, particularly high in oil field The big pump working under pressure, heavy load operating mode.

At present, domestic and international plunger displacement pump picture imitates spm600, the 1000 type pumps this kind of power end of plunger pump with plug-in reduction box profit The adopted oil circuit of cunning is designed as: lubricating oil is through gear oil pump ----oil filter ---, and overflow valve is divided into two, and a process is overflow Grease-box is returned to, another through lubrication supervisor's --- guide plate -- crosshead -- small end of connecting rod --- cross after stream valve adjustment pressure Head pin --- link body centre bore --- big end tile --- bent axle.This lubricating system its be disadvantageous in that: lubricating oil Have to pass through crosshead, crosshead pin, small end of connecting rod lubrication after could enter big end, bent axle is lubricated with bearing shell, Crankshaft oil-way is long, has of a relatively high requirement to lubrication pressure and discharge capacity, once oil pressure deficiency or link body center oil Hole produces high temperature locking pump chamber because the residue blocking in lubricating oil easily causes because of oil starvation between bent axle and connecting rod bearing shell Phenomenon, has a strong impact on the normal of big pump and is directly scrapped using even resulting in big pump.

Content of the invention

The purpose of this utility model is to overcome the power end crankshaft connecting rod system lubrication of the imitative spm600 pump of tradition, 1000 pumps The deficiency of mode, improves to lubricating system from lubricant passage way, provides a kind of novel reciprocating type power end of plunger pump lubrication System.

Object above is achieved through the following technical solutions:

A kind of this utility model novel reciprocating type power end of plunger pump lubricating system, is characterized in that by joint, lubrication carefully oil Pipe, bent sub, straight joint, main oil pipe, bent axle, " o " type circle, swivel joint, bent axle swivel joint, crankshaft-link rod, crosshead, ten The part such as prefix pin, small end of connecting rod tile forms.Joint, bent sub, straight joint are connected with pump case by screw thread one end, another End is connected with lubricating thin oil pipe, and main oil pipe is welded on inside pump case, and one end is connected with bent sub, one end and lubricating oil oil-in phase Even, inside pump case, crankshaft-link rod one end is connected crankshaft installed with bent axle, and one end is fixed in crosshead by crosshead pin Portion, small end of connecting rod watt is embedded in crankshaft-link rod, and bent axle swivel joint one end is connected with oil-in, and one end is threadedly attached in On swivel joint, swivel joint is sealed in inside bent axle by " o " type circle, is fixed by bolts to crankshaft end-face.

It is drilled with oilhole, for forming grease channel inside bent axle；Crankshaft end-face is drilled with screwed hole, for connecting State bent axle swivel joint；Bent axle swivel joint is got on the bus and is had groove, is sealed for installing described " o " type circle；Bore on main oil pipe There is screwed hole, be welded on inside pump case；Lubricating oil pipe is used for connecting main oil pipe and required lubricating component；Connect on bent axle swivel joint Being connected to can be with the described swivel joint of 360 ° of rotations, as the external interface of crank lubricating.

Operation principle of the present utility model:

Lubricating oil is from fuel tank through gear oil pump ----oil filter ---, and overflow valve is divided into two, adjusts through overflow valve for one Grease-box is returned to, lubricant passage way is divided into two-way by three way cock by another, road lubrication supervisor a --- guiding after seamless power Plate -- crosshead -- small end of connecting rod --- crosshead pin；--- bent axle swivel joint --- swivel joint --- is bent for another road lubricating oil pipe Axle --- big end tile, last two-way lubricating oil returns to fuel tank after all collecting in pump case.

Advantage of the present utility model is as follows:

1st, this utility model passes through to bore internal oilhole on bent axle, forms grease channel, bent axle, crankshaft-link rod are carried out Sufficient lubrication, it is long to overcome the imitative spm600 of tradition, the oil circuit in 1000 pump lubrication modes, easily cause crankshaft connecting rod lubrication not enough and The shortcoming burning out big pump, improves the reliability and security of big pump it is ensured that big pump can continue normal work.

2nd, this utility model adopts branch to lubricate crosshead and crankshaft-link rod, and lubricating oil pressure requirement is than conventional lubrication mode Low, gear oil pump oil pressure is required relatively loose, cost-effective.

3rd, this utility model each oil site oil mass reasonable distribution, makes each working surface lubrication and the oil mass of cooling obtain fully Satisfaction.

Brief description

Accompanying drawing 1 is lubricating pipe figure of the present utility model；

In figure, 1, joint；2nd, lubricate thin oil pipe；3rd, bent sub；4th, straight joint；5th, main oil pipe.

Accompanying drawing 2 is vertical view cutaway drawing of the present utility model；

In figure, 6, bent axle；7th, " o " type circle；8th, swivel joint；9th, bent axle swivel joint；10th, crankshaft-link rod；11st, cross Head；12nd, crosshead pin；13rd, small end of connecting rod tile.

Accompanying drawing 3 is critical piece bent axle of the present utility model.

Specific embodiment

In conjunction with accompanying drawing embodiment, a kind of this utility model novel reciprocating type power end of plunger pump lubricating system is made further Illustrate:

Fig. 1 lubricating pipe in figure, part 1 is joint, part 2 is the thin oil pipe of lubrication, part 3 is bent sub, part 4 is straight joint, part 5 For main oil pipe；In Fig. 2 top view, part 6 is bent axle, part 7 is " o " type circle, part 8 is swivel joint, part 9 is bent axle swivel joint, Part 10 is crankshaft-link rod, part 11 is crosshead, part 12 is crosshead pin, part 13 is small end of connecting rod tile.

Operation principle of the present utility model:

Lubricating oil is from fuel tank through gear oil pump ----oil filter ---, and overflow valve is divided into two, adjusts through overflow valve for one Grease-box is returned to, lubricant passage way is divided into two-way by three way cock by another, road lubrication supervisor a --- guiding after seamless power -- crosshead -- small end of connecting rod --- crosshead pin, --- bent axle swivel joint --- swivel joint --- is bent for another road lubricating oil pipe for plate Axle --- big end tile, last two-way lubricating oil returns to fuel tank after all collecting in pump case.

Connected mode of the present utility model: part 1 joint, part 3 bent sub, part 4 straight joint pass through screw thread one end and pump case phase Connect, the other end lubricates thin oil pipe with part 2 and is connected, and part 5 main oil pipe is welded on inside pump case, and one end is connected with part 3 bent sub, one End is connected with lubricating oil oil-in, and inside pump case, part 10 crankshaft-link rod one end is connected part 6 crankshaft installed with part 6 bent axle, and one End is fixed on inside part 11 crosshead by part 12 crosshead pin, and part 13 small end of connecting rod watt is embedded in part 10 crankshaft-link rod, part 9 Bent axle swivel joint one end is connected with oil-in, and one end is threadedly attached on part 8 swivel joint, and part 8 swivel joint passes through Part 7 " o " type circle is sealed in inside part 6 bent axle, is fixed by bolts to crankshaft end-face.

Claims (2)

1. a kind of novel reciprocating type power end of plunger pump lubricating system, is characterized in that by joint, lubricates thin oil pipe, bent sub, straight Joint, main oil pipe, bent axle, " o " type circle, swivel joint, bent axle swivel joint, crankshaft-link rod, crosshead, crosshead pin, connecting rod Microcephaly's tile forms；Joint, bent sub, straight joint are connected with pump case by screw thread one end, the other end and lubricate thin oil pipe phase Even；Main oil pipe is welded on inside pump case, and one end is connected with bent sub, and one end is connected with lubricating oil oil-in；Crankshaft installed is in pump Inside shell, crankshaft-link rod one end is connected with bent axle, and one end is fixed on inside crosshead by crosshead pin；Small end of connecting rod watt is inlayed It is embedded in connecting rod；Bent axle swivel joint one end is connected with oil-in, and one end is threadedly attached on swivel joint；Swivel joint It is sealed in inside bent axle by " o " type circle, be fixed by bolts to crankshaft end-face.

2. a kind of novel reciprocating type power end of plunger pump lubricating system according to claim 1, is characterized in that inside bent axle It is drilled with oilhole, crankshaft end-face is drilled with screwed hole；Bent axle swivel joint is got on the bus and is had groove；Screwed hole is drilled with main oil pipe；Bent Being connected with axle swivel joint can be with the swivel joint of 360 ° of rotations.