CN104234958A - Multi-row radial plunger pump - Google Patents
Multi-row radial plunger pump Download PDFInfo
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- CN104234958A CN104234958A CN201410456177.2A CN201410456177A CN104234958A CN 104234958 A CN104234958 A CN 104234958A CN 201410456177 A CN201410456177 A CN 201410456177A CN 104234958 A CN104234958 A CN 104234958A
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- cylinder body
- plunger
- pump
- pump housing
- pintle
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Abstract
The invention belongs to the technical field of plunger pumps, specifically relates to a multi-row radial plunger pump, and aims to solve the problems of complex flow distribution flow channel, high machining difficulty and large product size in the conventional plunger pump. The multi-row radial plunger pump comprises a pump body, a cylinder body and a front cover, wherein even rows of plungers are arranged along the axial direction of the cylinder body; each row of plungers is positioned on the same circumference of the cylinder body; co-window flow distribution is performed along the axial directions of every two adjacent rows of plungers. The multi-row radial plunger pump has the characteristics of compact structure, small number of parts, reasonable machining process, easiness in assembly and convenience in disassembly and assembly, the defects of a complex valve type flow distribution flow channel for products of the same types, difficulty in machining odd plungers which are uniformly distributed on the circumference, and large product size are overcome, the difficulty of a production machining process is lowered greatly, and the adaptability of the products to the environmental temperature difference is enhanced.
Description
Technical field
The invention belongs to the technical field of plunger pump, be specifically related to one and arrange radial plunger pump more.
Background technique
Existing plunger pump has two kinds of structures, one is curved shaft type radial plunger pump, also link type plunger pump is claimed, plunger distributes three rows or five rows vertically, often arrange a plunger, each plunger adopts a pair one-way valve type to carry out flow, and axial dimension is large, crankshaft-and-connecting-rod requirement on machining accuracy is high, runner in the pump housing is complicated, assembling is complicated; Two is axial flow distribution radial plunger pumps, plunger adopts crawler shoe bar linkage structure, and crawler shoe two ends contact with pintle and stator, stator and pump housing bias, radial plunger is single odd number, and uniform odd number plunger indexing accuracy requirement is high greatly, circumferentially for complex structure, crawler shoe difficulty of processing.Therefore invent a kind of structure simple, reduce production and processing technology, simple load and unload radial plunger pump is very important.
Summary of the invention
The present invention, in order to solve the problem that existing plunger pump flow runner is complicated, difficulty of processing is large, small product size is large, provides one and arranges radial plunger pump more.
The present invention adopts following technological scheme to realize:
Arrange radial plunger pump more, comprise the pump housing, cylinder body and protecgulum, described cylinder body arranges even rows plunger in the axial direction, circumferentially same at cylinder body of every organ timbering plug, often adjacent two organ timbering plugs axially window flow altogether.
Every organ timbering plug radial equipartition, quantity on cylinder body are even number, and the angle of the adjacent plunger of every two row on cylinder body axial direction is 45 °.
The shaft axis of protecgulum, the pump housing and pintle is concentric, the bearing that the pump housing fills and this shaft axis bias.
Cylinder body is Step Shaft central through bore part, and the left boss of cylinder body inserts the pump housing, and protecgulum inserted out by right boss and end has radial keyway; Many organ timberings consent is arranged on middle boss, and the platform of each plunger hole top periphery ream milling one and plunger hole axis perpendicular, for the location of spring; The connecting part of middle boss and right boss radially has and axial angle 45 ° of oilholes on right boss, lubricant oil is incorporated into cylinder body central through bore.
Be pressed with pintle in the pump housing, cylinder body is assemblied on pintle by central through bore, and pintle and cylinder body assemble the oil groove that there is fine mutual square crossing at the axial position contacted mutually; Pintle axial direction has two parallel elongated closed pores, one end communicates with two radial slotted eyes, and one end communicates with two semi-cylindrical grooves; Two elliptical apertures pass in and out oilhole with the pump housing respectively and communicate, and two semicolumn grooves are radially symmetrical, and axial cross section is fan-shaped, communicate respectively with adjacent two organ timbering consents, are the shared flow windows of the adjacent two organ timbering plugs of many row's plunger pumps.
Plunger two ends are spherical cap shape, and be the convex ball shape contacted with bearing inner race near one end of pintle, the other end is concave ball shape shape; Convex spherical crown bottom has circular groove, locates for spring.
Arrange wear plate between the pump housing and cylinder body, wear plate is fixed on the pump housing, uses oil sealing sealing between cylinder body and protecgulum.
The present invention is compared with existing radial plunger pump, structure upper plug is many rows, the plunger number often arranged is even number, adopt and be axially total to window flow technology, there is compact structure, part be few, processing technology is reasonable, assembling is simple, the feature of easy accessibility, overcome the runner difficulty of processing that is complicated, circumferentially uniform odd number plunger of like product valve type flow and the large shortcoming of small product size, greatly reduce the difficulty of production and processing technology, improve the conformability of product to circumstance of temperature difference.
The present invention can be used as oil hydraulic pump, also oil hydraulic motor can be used as, have that delivery pressure is high, uniform flow, forward and reverse fast and the frequent hydraulic characteristic switched, during for hydraulic system kinetic pump, do not need selector valve, only rely on change and the feasible system commutation of pump sense of rotation, be particularly suitable for working time short, need forward and reverse frequent commutation, occasion that circumstance of temperature difference requirement is large.
Specifically, hinge structure of the present invention has following beneficial effect:
1. the often row plunger cavity on cylinder body is even number, and compared with odd number plunger cavity, difficulty of processing significantly reduces.
2. adopt many rows to share flow window principle, solve a difficult problem for even number structure odd number work, ensure that the uniformity of output flow.
3. adopt clearance seal between cylinder body and pintle, adopt hydrostatic lubrication structure at high pressure ratio friction position, ensure, when using low viscosity hydraulic oil, namely will have good greasy property, again reduce the wearing and tearing of friction pair.
4., between cylinder body and the pump housing, adopt the plane sliding bearing having certain axial clearance, namely will ensure the lubricating requirement of friction pair, greatly reduce again the axial dimension of pump.
5. structural design is compact, volume is little, and assembling is simple, easy accessibility, greatly facilitates using and cleaning of user.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is the A-A sectional drawing of Fig. 1,
Fig. 3 is the structural representation of pintle,
Fig. 4 is the A-A sectional drawing of Fig. 3,
Fig. 5 is the B-B sectional drawing of Fig. 3,
Fig. 6 is axial flow distribution structural representation,
Fig. 7 is the A-A sectional drawing of Fig. 6.
In figure: the 1-pump housing, 2-seal ring, 3-pintle, 4-resilient key, 5-wear plate, 6-cylinder body, 7-plunger, 8-spring, 9-bearing, 10-seal ring, 11-protecgulum, 12-backbone sealing ring, 13-screw, 14-oil leak hole, 15-oil inlet and outlet 1,16-oil inlet and outlet 2,17-attachment hole, the right flow window of 18-, the left flow window of 19-.
Embodiment
By reference to the accompanying drawings the specific embodiment of the present invention is described further.
For double radial plunger pump, as shown in Figure 1, 2, a kind of plunger pump adopting axially window flow technology, double radial even number plunger altogether, comprises protecgulum, the pump housing, cylinder body, plunger, pintle, spring, wear plate, bearing, oil sealing.During work, the radial keyway of cylinder body axle head docks with coupling, and by the transmission of power of motor to cylinder body, when cylinder body rotates, plunger does interior to-and-fro motion in plunger hole, completes oil suction and force feed.
The shaft axis of protecgulum, the pump housing, pintle is concentric, and the bearing that the pump housing fills and this shaft axis bias, when ensureing that cylinder body rotates, the cavity volume of plunger changes, and completes oil suction and force feed.
Two organ timbering plugs radial equipartition on cylinder body respectively, every organ timbering plug is even number, two row's adjacent plunger angles 45 °, as shown in Figure 6,7, two organ timbering plugs share the flow window of a pair semicylinder, and being parallel to each other perpendicular to axis, when cylinder body rotates around pintle under motor drives, plunger completes oil suction and force feed.
Cylinder body is Step Shaft central through bore part.The left boss of cylinder body inserts the pump housing, and protecgulum inserted out by right boss, and end has radial keyway, is connected with motor coupling; The connecting part of middle boss and right boss radially has and axial angle 45 ° of oilholes on right boss, lubricant oil is incorporated into cylinder body central through bore (assembling pintle is used), central through bore has twice oil groove, when ensureing that cylinder body rotates, cylinder body center hole and pintle surface form good lubricant film.Middle boss radial equipartition axially two organ timbering consents in a distance, every organ timbering consent number is even number, and two adjacent organ timbering consent angles are 45 °, and the platform of each plunger hole top periphery ream milling one and plunger hole axis perpendicular, for the location of spring.
Be provided with the wear plate of certain axial clearance between cylinder body and the pump housing, wear plate is fixed on the pump housing as plane sliding bearing elastic cylindrical pin, when guaranteeing that cylinder body rotates and the pump housing do not form friction; The pump housing and protecgulum adopt flange connection, and three screws connect, easy accessibility, with oil sealing sealing between cylinder body and protecgulum, ensure that hydraulic oil must not external leakage.
Pintle press-fits in the pump housing, and cylinder body is assemblied on pintle by center hole, and has certain interval, pintle and cylinder body assemble the oil groove that there is fine mutual square crossing at the axial position contacted mutually, ensureing that cylinder body is when rotating around pintle, forms lubricant film, reducing wearing and tearing; Pintle and the pump housing, cylinder body and the pump housing, seal ring between the pump housing and protecgulum, is adopted to seal.As shown in Fig. 3,4,5, pintle axial direction has two parallel elongated closed pores, one end communicates with two radial slotted eyes, one end communicates with two semi-cylindrical grooves, it is two oval radial circular holes that pintle outer surface left end has periphery, communicates respectively with the turnover oilhole of the pump housing; It is flow window that the excircle of turnover oilhole right-hand member has the semicolumn groove be parallel to each other for a pair, and arrange plunger cavity with two of cylinder body and be communicated with and share, on axial cross section, flow window is fan-shaped.
Plunger two ends are spherical cap shape, and convex spherical top ensures that plunger overlaps with plunger hole central axis all the time completely with the normal of bearing inner race point of contact, only bears radial force; Ensure bottom concave ball shape that plunger only produces radial force during force feed in plunger hole; Convex spherical crown bottom has circular groove, locates for spring.
Protecgulum, the pump housing adopt alloy aluminum, and pintle, plunger adopt alloyed steel, and cylinder body adopts spheroidal graphite cast iron, and wear plate adopts Babbitt.
Claims (7)
1. arrange radial plunger pump one kind more, comprise the pump housing (1), cylinder body (6) and protecgulum (11), it is characterized in that described cylinder body (6) arranges even rows plunger (7) in the axial direction, circumferentially same at cylinder body of every organ timbering plug, often adjacent two organ timbering plugs (7) axially window flow altogether.
2. according to claim 1ly arrange radial plunger pump, it is characterized in that every organ timbering plug (7) radial equipartition, quantity on cylinder body are even number, the angles of the adjacent plunger of every two row on cylinder body axial direction are 45 ° more.
3. according to claim 1 and 2ly arrange radial plunger pump, it is characterized in that the shaft axis of protecgulum (11), the pump housing (1) and pintle (3) is concentric, the bearing (9) that the pump housing (1) fills is eccentric with this shaft axis more.
4. according to claim 3ly arrange radial plunger pump, it is characterized in that cylinder body (6) is for Step Shaft central through bore part, the left boss of cylinder body inserts the pump housing (1), and protecgulum (11) inserted out by right boss and end has radial keyway more; Many organ timberings consent is arranged on middle boss, and the platform of each plunger hole top periphery ream milling one and plunger hole axis perpendicular, for the location of spring (8); The connecting part of middle boss and right boss radially has and axial angle 45 ° of oilholes on right boss, lubricant oil is incorporated into cylinder body central through bore.
5. according to claim 4ly arrange radial plunger pump more, it is characterized in that being pressed with pintle (3) in the pump housing (1), cylinder body (6) is assemblied on pintle (3) by central through bore, and pintle (3) and cylinder body (6) assemble the oil groove that there is fine mutual square crossing at the axial position contacted mutually; Pintle (3) axial direction has two parallel elongated closed pores, one end communicates with two radial slotted eyes, and one end communicates with two semi-cylindrical grooves; Two elliptical apertures pass in and out oilhole with the pump housing respectively and communicate, and two semicolumn grooves are radially symmetrical, and axial cross section is fan-shaped, communicate respectively with adjacent two organ timbering consents, are the shared flow windows of the adjacent two organ timbering plugs of many row's plunger pumps.
6. according to claim 5ly arrange radial plunger pump, it is characterized in that plunger (7) two ends are spherical cap shape, be the convex ball shape contacted with bearing inner race near one end of pintle, the other end is concave ball shape shape more; Convex spherical crown bottom has circular groove, locates for spring.
7. according to claim 6ly arrange radial plunger pump, it is characterized in that arranging wear plate (5) between the pump housing (1) and cylinder body (6), wear plate (5) is fixed on the pump housing (1), uses oil sealing sealing between cylinder body (6) and protecgulum (11) more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456177.2A CN104234958A (en) | 2014-09-10 | 2014-09-10 | Multi-row radial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456177.2A CN104234958A (en) | 2014-09-10 | 2014-09-10 | Multi-row radial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104234958A true CN104234958A (en) | 2014-12-24 |
Family
ID=52223698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410456177.2A Pending CN104234958A (en) | 2014-09-10 | 2014-09-10 | Multi-row radial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104234958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114787513A (en) * | 2019-12-17 | 2022-07-22 | 米司创有限责任公司 | Axial piston pump with inclined plates |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191296Y (en) * | 1994-03-04 | 1995-03-08 | 甘肃工业大学 | High-pressure large-drain radial plunger pump with two rotors |
| JPH08232832A (en) * | 1995-02-28 | 1996-09-10 | Unisia Jecs Corp | Radial plunger pump |
| JP2000027754A (en) * | 1998-07-09 | 2000-01-25 | Unisia Jecs Corp | Radial plunger pump |
| CN2641313Y (en) * | 2003-09-18 | 2004-09-15 | 郑州磨料磨具磨削研究所 | Super high pressure oil pump |
| CN201354718Y (en) * | 2009-02-25 | 2009-12-02 | 杭州萧山东方液压件有限公司 | Multi-cylinder radial plunger pump |
| CN101871442A (en) * | 2010-06-23 | 2010-10-27 | 余文凌 | Radial plunger high-pressure water pump |
| CN202132196U (en) * | 2011-05-27 | 2012-02-01 | 宝鸡和新机电设备有限公司 | Novel radial plunger pump |
| CN102996384A (en) * | 2012-11-30 | 2013-03-27 | 江苏大学 | Multirow ultra-low-speed inner curve type low-density energy compression plunger pump |
| CN204082464U (en) * | 2014-09-10 | 2015-01-07 | 梁彦俊 | Arrange radial plunger pump more |
-
2014
- 2014-09-10 CN CN201410456177.2A patent/CN104234958A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191296Y (en) * | 1994-03-04 | 1995-03-08 | 甘肃工业大学 | High-pressure large-drain radial plunger pump with two rotors |
| JPH08232832A (en) * | 1995-02-28 | 1996-09-10 | Unisia Jecs Corp | Radial plunger pump |
| JP2000027754A (en) * | 1998-07-09 | 2000-01-25 | Unisia Jecs Corp | Radial plunger pump |
| CN2641313Y (en) * | 2003-09-18 | 2004-09-15 | 郑州磨料磨具磨削研究所 | Super high pressure oil pump |
| CN201354718Y (en) * | 2009-02-25 | 2009-12-02 | 杭州萧山东方液压件有限公司 | Multi-cylinder radial plunger pump |
| CN101871442A (en) * | 2010-06-23 | 2010-10-27 | 余文凌 | Radial plunger high-pressure water pump |
| CN202132196U (en) * | 2011-05-27 | 2012-02-01 | 宝鸡和新机电设备有限公司 | Novel radial plunger pump |
| CN102996384A (en) * | 2012-11-30 | 2013-03-27 | 江苏大学 | Multirow ultra-low-speed inner curve type low-density energy compression plunger pump |
| CN204082464U (en) * | 2014-09-10 | 2015-01-07 | 梁彦俊 | Arrange radial plunger pump more |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114787513A (en) * | 2019-12-17 | 2022-07-22 | 米司创有限责任公司 | Axial piston pump with inclined plates |
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Application publication date: 20141224 |
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| WD01 | Invention patent application deemed withdrawn after publication |