CN106593848B - A kind of power end of plunger pump - Google Patents
A kind of power end of plunger pump Download PDFInfo
- Publication number
- CN106593848B CN106593848B CN201611115414.4A CN201611115414A CN106593848B CN 106593848 B CN106593848 B CN 106593848B CN 201611115414 A CN201611115414 A CN 201611115414A CN 106593848 B CN106593848 B CN 106593848B
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- CN
- China
- Prior art keywords
- fuselage
- crankshaft
- plunger
- seal box
- crosshead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/006—Crankshafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of power end of plunger pump, including fuselage, the crankshaft in fuselage is set, and acts the N group transmission component diametrically reciprocated by crankshaft band, N group transmission component is connect with N number of plunger of fluid end respectively, and wherein N is natural number；It is connected respectively by bearing between the both ends and fuselage of crankshaft；It is characterized by: the fuselage and fluid end intersection are equipped with disjunctor seal box baffle, disjunctor seal box baffle is equipped with N number of open type and seals cartridge apertures, is respectively equipped with the seal box sealingly connected with N number of plunger in each sealing cartridge apertures.Compared with prior art, the present invention has the advantages that by being equipped with disjunctor seal box baffle in fuselage and fluid end intersection, it is equipped with N number of open type on disjunctor seal box baffle and seals cartridge apertures, the seal box sealingly connected with N number of plunger is respectively equipped in each sealing cartridge apertures, it is not isolated between N number of plunger, therefore without the bridge of the nose between cylinder, also just there is no bridge of the nose crackings between cylinder to disconnect phenomenon.
Description
Technical field
The present invention relates to a kind of power end of plunger pump.
Background technique
The power end of reciprocating plunger pump has generally comprised fuselage, be mounted on the crankshaft in fuselage, connecting rod, crosshead, in
Between bar, intermediate bar couples with the plunger of fluid end, under crankshaft drive, carries out through connecting rod, crosshead, intermediate bar driving plunger past
Multiple movement；In above-mentioned connection structure, other than crankshaft and fuselage junction installation roller bearing, between remaining friction member
Using the sliding frictions structure such as tile axle sleeve.Crosshead generally uses screw thread or form of flanges to couple with intermediate bar, intermediate bar with
Plunger connection, the crosshead slideway of fuselage generally uses whole column type or thin-wall cylinder casing setting type, if multi-cylinder structure, between cylinder
It is mutually isolated out, there are relatively narrow bridge of the nose structures between adjacent cylinder structure.The front end face of fuselage again with the fluid end pump housing into
Row connection.The power end of plunger pump of traditional design often deposits deficiency in the design, and generally existing low efficiency, noise are big, practical
Often occurs the fever of fuselage slideway nose end plucking in, stress concentrates cracking, and especially the bridge of the nose is easy to crack between cylinder, intermediate bar sealing
Be easy oil leak, assembly and dismounting are difficult, especially with fluid end couple corroded by scene after be difficult to dismantle, power end volume is big,
These inadequate natural endowments affect reciprocating plunger pump and develop to efficient, energy saving, lightweight.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of plunger without the bridge of the nose between cylinder for the above-mentioned prior art
Pump power end.
The technical scheme of the invention to solve the technical problem is: a kind of power end of plunger pump, including fuselage, if
Set the crankshaft in fuselage, and the N group transmission component diametrically reciprocated acted by crankshaft band, N group transmission component respectively with liquid
N number of plunger at power end connects, and wherein N is natural number；It is connected respectively by bearing between the both ends and fuselage of crankshaft；Its feature exists
In: the fuselage and fluid end intersection are equipped with disjunctor seal box baffle, and disjunctor seal box baffle is sealed equipped with N number of open type
Cartridge apertures, it is each to seal the seal box for being respectively equipped in cartridge apertures and sealingly connecting with N number of plunger.
The N group transmission component structure is identical, includes connecting rod and crosshead；It is equipped in the fuselage N number of for being arranged
The guide rail hole of crosshead, the guide rail hole are up and down, control the unenclosed construction also penetrated through.
The guide rail hole inner wall is equipped with the symmetrically arranged upper guide plate of N group and bottom guide, and N number of crosshead is separately fixed at N group
Between symmetrically arranged upper guide plate and bottom guide.
The first end of the connecting rod is coupled with the rod journal of crankshaft by big end rolling bearing, the second end of connecting rod
Couple with the first end of crosshead, the plunger of fluid end couples with the second end of crosshead.
The first end of the crosshead is equipped with front aperture, and microcephaly's bearing ten for installing connecting rods is provided in the emptying aperture of front end
It is fixed between prefix and connecting rod by crosshead pin, two ends of crosshead pin are fixed against crosshead pin shaft with retaining ring using hole
To play；The second end of the crosshead is provided with positioning round table, and hemisphere adjustment block and hemisphere adjustment are equipped in positioning round table
The core-adjustable ball of block cooperation, the outer circle of positioning round table are provided with screw thread, and the plunger of fluid end is solid by snap ring and clamping nut installation
It is scheduled on crosshead second end positioning round table outer circle.
There are be used for plunger, hemisphere adjustment block, core-adjustable ball, card between the crosshead second end and disjunctor seal box baffle
The gap window of ring and clamping nut.
It is set as N=1, between crankshaft and fuselage there are two fulcrum connection structure, the two fulcrum connection structures are respectively as follows:
Bearing jointing structure between crankshaft two end and fuselage；
As N >=2, fuselage interior, which is fixed with, is less than or equal to a fixed support plate of N-1, each fixation more than or equal to 1
Support plate passes through bearing respectively and couples with crankshaft, therefore, between crankshaft and fuselage is equipped with and is more than or equal to three less than or equal to N+1 branch
Point connection structure, these fulcrum connection structures include: the bearing jointing structure between crankshaft two end and fuselage, and are arranged in fuselage
Internal is more than or equal to 1 bearing jointing structure being less than or equal between N-1 fixed support plate and crankshaft.
It is connected respectively by rolling bearing between the both ends and fuselage of the crankshaft, when the number of fixed support plate is 2
And at two or less, connected between fixed support plate and the trunnion of crankshaft by crankshaft sliding bearing；When fixed support plate
At three or more, two pieces close to two ends of fuselage are connected between fixed support plate and crankshaft by both sides sliding bearing number
It connects, is connected between intermediate remaining fixed support plate and crankshaft by intermediate rolling bearing.
The crankshaft be equipped with fan plate rotary table corresponding with fixed support plate number, each fixed support plate respectively with song
One fan plate rotary table of axis is coupled by bearing.
It is mounted with that two pieces are got rid of oiled-plate method, are got rid of oiled-plate method and are connected to swab case, connect in the fan plate rotary table outer circle of fuselage end
Oil box is connected to oil sump.
Compared with the prior art, the advantages of the present invention are as follows: by being sealed in fuselage and fluid end intersection equipped with disjunctor
Box baffle is equipped with N number of open type on disjunctor seal box baffle and seals cartridge apertures, is respectively equipped with and N number of column in each sealing cartridge apertures
The seal box sealingly connected is filled in, is not isolated between N number of plunger, therefore without the bridge of the nose between cylinder, also just there is no the bridge of the noses between cylinder to open
Phenomenon is opened in brisement.
Detailed description of the invention
Fig. 1 is plunger pump power end structure schematic diagram in the embodiment of the present invention；
Fig. 2 is plunger pump power terminal body structure schematic diagram in the embodiment of the present invention；
Fig. 3 is another viewing angle constructions schematic diagram of power end of plunger pump in the embodiment of the present invention；
Fig. 4 is the another viewing angle constructions schematic diagram of power end of plunger pump in the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
The crankshaft 2 in fuselage 1 is arranged in power end of plunger pump as shown in figures 1-4, including fuselage 1, and by 2 band of crankshaft
The N group transmission component diametrically reciprocated is acted, N group transmission component is connect with N number of plunger 10 of fluid end respectively, and wherein N is
Natural number；It is connected respectively by bearing between the both ends and fuselage of crankshaft 2；
It is set as N=1, between crankshaft and fuselage there are two fulcrum connection structure, the two fulcrum connection structures are respectively as follows:
Bearing jointing structure between crankshaft two end and fuselage；
As N >=2, fuselage interior, which is fixed with, is less than or equal to a fixed support plate 22, Mei Gegu of N-1 more than or equal to 1
Determine support plate 22 to couple by bearing with crankshaft respectively, therefore, between crankshaft 2 and fuselage is equipped with and is more than or equal to three less than or equal to N+
1 fulcrum connection structure, these fulcrum connection structures include: the bearing jointing structure between crankshaft two end and fuselage, and setting
It is more than or equal to 1 bearing jointing structure being less than or equal between N-1 fixed support plate and crankshaft in fuselage interior.Therefore, when
When power end drives more than two plungers, between crankshaft 2 and fuselage, in addition to the bearing between crankshaft two end and fuselage connects knot
Outside structure, bearing jointing structure is additionally provided between 2 middle part of crankshaft and fuselage.Setting bearing connects between 2 middle part of crankshaft and fuselage
Binding structure can effectively improve the service life of the mechanical coupling member between fuselage and crankshaft, moreover it is possible to prevent fuselage slideway bore ends
It cracks scared.
Since the volume of power end of plunger pump is often huger, when power end of plunger pump needs to drive multiple plungers,
Crankshaft often takes separate structure, i.e., the crankshaft of a root long is connected by multistage crankshaft, in order to eliminate the axis between seperated crankshaft
To error, between the both ends and fuselage of the crankshaft respectively by rolling bearing connect, when fixed support plate number be 2 and
At two or less, connected between fixed support plate and crankshaft by crankshaft sliding bearing；When the number of fixed support plate is at three
When above, two pieces close to two ends of fuselage are connected between fixed support plate and crankshaft by both sides sliding bearing 23, are in
It is connected between intermediate remaining fixed support plate and crankshaft by intermediate rolling bearing 7.Therefore the branch between crankshaft 2 and fuselage 1
Point connection structure is combined using rolling bearing with sliding bearing, and mechanical efficiency and bearing pair service life are effectively improved.Certainly, this
Mode, it is equally applicable for integral one-piece crankshaft.
For N=5, power end of plunger pump structure of the invention is described in detail, the plunger pump power
End includes fuselage 1, crankshaft 2, connecting rod 3, crosshead 4, upper guide plate 5, bottom guide 6, intermediate rolling bearing 7, the big end axis of rolling
Hold 8, Lian little Tou needle bearing 9, conjuncted plunger 10, core-adjustable ball 11, hemisphere adjustment block 12, snap ring 13, clamp nut 14, seal box
Baffle 15, seal box 16, crosshead pin 17, crankshaft rolling bearing 18, bearing lead to lid 19, bearing boring cover 20, swab case 21, fix
Support plate 22, two side sliding bearings 23 and disc 24, referring to shown in Fig. 1~3.
Fuselage 1 is five cylinder structures, and there are six fulcrum connection structures for tool between fuselage 1 and crankshaft 2, is respectively as follows: crankshaft two end
18 connection structure of crankshaft rolling bearing between fuselage is arranged in 4 of fuselage interior between fixed support plate and crankshaft
Bearing jointing structure, wherein two pieces close to two ends of fuselage pass through both sides sliding bearing 23 between fixed support plate and crankshaft
Connection is connected between fixed support plate and crankshaft by intermediate rolling bearing 7 in intermediate two.Wherein intermediate two fixations
It is rolling bearing connection between support plate and crankshaft, between two end of crankshaft and fuselage, the radial force moment of flexure of crankshaft can be born, increases
Add stiffness；Two auxiliary fulcrum connection structures close to two side of fuselage end are sliding bearing, are mainly used for as seperated assembled
Crankshaft assists the stress moment of flexure that crankshaft A, B, C, D are turned, and lowers the stress point of crankshaft, fuselage, and spy is suitble to five cylinders or more more
It is applied on cylinder pump power end.
The crankshaft is provided with six fan plate rotary tables, intermediate four fan plate rotary tables respectively with four fixed support plates it
Between pass through bearing and connect, it may be assumed that aforementioned intermediate rolling bearing 7 is installed in intermediate two adjacent fan plate rotary table outer circles, in centre
Aforementioned two side sliding bearing 23 is installed in other two fan plate rotary table outer circle, outside two pieces of fan plate rotary tables of fuselage end
It is separately installed on circle and gets rid of oiled-plate method 24, got rid of oiled-plate method 24 and be connected to swab case 21, swab case 21 is connected to oil sump.
The N group transmission component structure is identical, includes connecting rod 3 and crosshead 4, the wherein first end and crankshaft of connecting rod 3
Rod journal coupled by big end rolling bearing 8, the second end of connecting rod 3 couples with the first end of crosshead 4, fluid end
Plunger 10 couple with the second end of crosshead 4.The first end of the crosshead 4 is equipped with front aperture, is provided in the emptying aperture of front end
It is fixed by crosshead pin 17 between 3 second end of crosshead 4 and connecting rod for the small end of connecting rod rolling bearing 9 of installing connecting rods 3,
Two ends of crosshead pin 17 are fixed against crosshead pin axial float with retaining ring using hole；The second end of crosshead is provided with fixed
Circle of position platform, is equipped with the core-adjustable ball 11 that hemisphere adjustment block 12 and hemisphere adjustment block 12 cooperate in positioning round table, positioning round table it is outer
Circle is provided with screw thread, and the plunger 10 of fluid end is fixed on crosshead second end setting circle by snap ring 13 and clamping nut 14
Platform outer circle.
The guide rail hole for being used to be arranged N number of crosshead up and down is equipped in the fuselage 1, which is that left and right is also passed through
Logical unenclosed construction, guide rail hole inner wall are equipped with the symmetrically arranged upper guide plate 5 of N group and bottom guide 6, and N number of crosshead 4 is solid respectively
It is scheduled between the symmetrically arranged upper guide plate 5 of N group and bottom guide 6, the fuselage 1 is kept off with fluid end intersection equipped with disjunctor seal box
Plate 15, disjunctor seal box baffle 15 are equipped with N number of open type and seal cartridge apertures, be respectively equipped with and N number of plunger in each sealing cartridge apertures
10 seal boxes 16 sealingly connected；Therefore it is not isolated between N number of plunger.Crosshead second end and disjunctor seal box baffle 15 it
Between there are the gap window 25 for plunger 10, hemisphere adjustment block 12, core-adjustable ball 11, snap ring 13 and clamping nut 14, waists
It is provided with a movement parts observation window 27.
Power end of plunger pump provided in this embodiment compared with prior art, advantage are as follows:
1, the fuselage of Five-cylinder piston pump power end uses six fulcrum connection structures, using rolling bearing and sliding bearing phase
In conjunction with suitable for seperated crankshaft, the sliding friction for changing conventional Five-cylinder piston pump becomes rolling friction, effectively improves mechanical efficiency
And the bearing pair service life；
2, between the crosshead and guide rail hole of fuselage, between crosshead and seal box, fuselage and the pump housing are fitted and connected place
It is all made of unenclosed construction, mutually without isolation between cylinder, cancels the bridge of the nose between original structure fuselage cylinder, reduce various stress points,
Help to crack caused by fuselage is concentrated due to each stress；
3, the plunger body of fluid end is directly coupled in crosshead, reduces the intermediate extension bar in original structure, is reduced in this way
Workpiece accumulated error, the length for improving assembly precision, shortening fuselage improve mechanical strength, the stiffness of whole pump, dismount column
Cock body is more convenient, reduces manufacturing cost.
Claims (2)
1. a kind of power end of plunger pump, including fuselage (1), the crankshaft (2) being arranged in fuselage (1), and acted by crankshaft (2) band
The N group transmission component diametrically reciprocated, N group transmission component are connect with N number of plunger (10) of fluid end respectively, and wherein N is certainly
So number；It is connected respectively by bearing between the both ends and fuselage of crankshaft (2)；It is characterized by: the fuselage (1) and fluid end are handed over
Disjunctor seal box baffle (15) is equipped at boundary, disjunctor seal box baffle (15) is equipped with the sealing cartridge apertures of N number of open type, Mei Gemi
The seal box (16) sealingly connected with N number of plunger (10) is respectively equipped in jacket hole；The N group transmission component structure is identical,
Including connecting rod (3) and crosshead (4)；The guide rail hole (26) for N number of crosshead to be arranged, the guide rail are equipped in the fuselage (1)
Hole (26) is up and down, controls the unenclosed construction also penetrated through.
2. power end of plunger pump according to claim 1, it is characterised in that: what the guide rail hole inner wall was provided symmetrically
Upper guide plate (5) and bottom guide (6), the both ends of N number of crosshead (4) be fixed on symmetrically arranged upper guide plate (5) and bottom guide (6) it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115414.4A CN106593848B (en) | 2016-12-07 | 2016-12-07 | A kind of power end of plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115414.4A CN106593848B (en) | 2016-12-07 | 2016-12-07 | A kind of power end of plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593848A CN106593848A (en) | 2017-04-26 |
| CN106593848B true CN106593848B (en) | 2019-04-30 |
Family
ID=58597347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611115414.4A Active CN106593848B (en) | 2016-12-07 | 2016-12-07 | A kind of power end of plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593848B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021081750A1 (en) * | 2019-10-29 | 2021-05-06 | 烟台杰瑞石油装备技术有限公司 | Multi-point supporting five-cylinder plunger pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2766701A (en) * | 1953-03-09 | 1956-10-16 | Nat Supply Co | Plunger and cylinder for pump |
| US4264286A (en) * | 1977-12-27 | 1981-04-28 | Geosource, Inc. | Multiple fluid pump |
| CN201351599Y (en) * | 2008-12-18 | 2009-11-25 | 浙江工业大学 | Piston assembly adopting complex retainer ring |
| CN203560050U (en) * | 2013-11-19 | 2014-04-23 | 天津市通洁高压泵制造有限公司 | Five-plunger high-pressure pump power end capable of reducing torque of crankshaft |
| CN206377012U (en) * | 2016-12-07 | 2017-08-04 | 宁波合力机泵股份有限公司 | A kind of power end of plunger pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7364412B2 (en) * | 2004-08-06 | 2008-04-29 | S.P.M. Flow Control, Inc. | System, method, and apparatus for valve stop assembly in a reciprocating pump |
-
2016
- 2016-12-07 CN CN201611115414.4A patent/CN106593848B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2766701A (en) * | 1953-03-09 | 1956-10-16 | Nat Supply Co | Plunger and cylinder for pump |
| US4264286A (en) * | 1977-12-27 | 1981-04-28 | Geosource, Inc. | Multiple fluid pump |
| CN201351599Y (en) * | 2008-12-18 | 2009-11-25 | 浙江工业大学 | Piston assembly adopting complex retainer ring |
| CN203560050U (en) * | 2013-11-19 | 2014-04-23 | 天津市通洁高压泵制造有限公司 | Five-plunger high-pressure pump power end capable of reducing torque of crankshaft |
| CN206377012U (en) * | 2016-12-07 | 2017-08-04 | 宁波合力机泵股份有限公司 | A kind of power end of plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106593848A (en) | 2017-04-26 |
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