CN106640628A - Micro meshing clearance high-pressure screw pump - Google Patents
Micro meshing clearance high-pressure screw pump Download PDFInfo
- Publication number
- CN106640628A CN106640628A CN201610893720.4A CN201610893720A CN106640628A CN 106640628 A CN106640628 A CN 106640628A CN 201610893720 A CN201610893720 A CN 201610893720A CN 106640628 A CN106640628 A CN 106640628A
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- convex
- micro
- pump
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
- F04C2/165—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type having more than two rotary pistons with parallel axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2250/00—Geometry
- F04C2250/20—Geometry of the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/17—Tolerance; Play; Gap
- F04C2270/175—Controlled or regulated
Abstract
The invention aims at providing a micro meshing clearance high-pressure screw pump. A busbar preference method is adopted for forming a micro meshing clearance of a conjugation spiral curved surface in the single-freedom-degree meshing movement, and the work pressure of the screw pump is improved. A busbar of a screw spiral curved surface is a combined space curve formed by an arc and a transition curve. The busbar moves along the axis of a screw at a constant speed while rotating around the axis of the screw at a constant speed to form the spiral curved surface. The micro meshing clearance high-pressure screw pump is composed of a convex screw, a front bearing, a front end cover, a first concave screw, a rear bearing, a rear end cover, a second concave screw, a pump body and an oil opening. The convex screw is engaged with the two concave screws, a motor drives the convex screw to rotate and drives the two concave screws to rotate, oil liquid is sucked in from an oil inlet, sealed and pressurized through a screw spiral groove and is then conveyed to an oil outlet to be pressed out.
Description
Technical field
In technical fields such as fluid conveying, hydraulic drives, pump apparatus are widely used in industrial and agricultural production, equipment system
Make, sewage disposal and social life various aspects.The application of wherein positive displacement pump accounts for more than 70%, and the spiral shell in positive displacement pump
Bar pump is good with its continuity, life-span length, and high reliability application is more and more.The present invention relates to a kind of micro- back lash is high
Pressure screw pump.
Background technology
Pump apparatus are widely used in industrial and agricultural production, equipment manufacturing, sewage disposal and social life every field, its
Middle positive displacement pump with gear pump, vane pump, plunger displacement pump and screw pump are main Types.In existing product, the protrusion of screw pump
Advantage is that continuity is good, life-span length, and reliability is high.But because of the restriction of spiral camber design meanses, and manufacture difficulty is big etc. former
Cause, becomes the bottleneck that restriction screw pump is particularly high pressure screw pump development.In recent years, with the application of modern Design and many
The popularization of Shaft and NC Machining Test manufacturing technology, screw pump design and product manufacturing have significant progress.The present invention is between a kind of micro- engagement
Gap high pressure screw pump.
The content of the invention
It is an object of the invention to provide a kind of micro- back lash high pressure screw pump.The present invention uses the side of preferred bus
Method, forms micro- back lash of the Conjugate helical surfaces in single-degree-of-freedom gear motion, improves screw pump operating pressure.The present invention
Bus be interblock space curve that circular arc and transition curve are formed, bus around screw axis constant velocity rotation while, along screw rod
Axis constant speed movement forms spiral camber.Apparatus of the present invention by：Convex screw rod, fore bearing, drive end bearing bracket, recessed screw rod one, rear bearing, after
End cap, recessed screw rod two, the pump housing, hydraulic fluid port composition.Convex screw rod is engaged with two recessed screw rods, and motor drives convex screw rod to rotate, convex screw rod
Drive two recessed screw rods to rotate, fluid is sucked from oil-in, Jing after screw spiral trough oil sealing and pressurization oil-out pressure is transported to
Go out.
According to the present invention, with the parameter computational chart of highly-accurate nephelometric titrimetry method and computing formula spiral camber is represented.
And parameter setting is carried out by use requirement, reach microgap inter_curve length optimum.
According to the present invention, in centre, two recessed screw rods are in both sides, and screw axis are in the same plane for a convex screw rod.
Convex screw rod is engaged with recessed screw rod, and engagement contact line is space curve, and along the engagement place of screw axis, engagement contact line is identical.
Convex screw rod is left-handed, recessed screw rod dextrorotation.When convex screw rod is rotated to a direction, two recessed screw rods are rotated round about.
According to the present invention, the internal diameter of convex screw rod is identical with the external diameter of recessed screw rod, improves the moment of torsion bearing function power of convex screw rod.
According to the present invention, screw pitch is designed according to traffic requirement, and lift and efficiency of transmission, the present invention are improved to greatest extent
Using three screw rods.
According to the present invention, three screw rods adopt forward and backward sliding supported condition.Manufacture for convenience and use, it is ensured that shaft end
Sealing property, forward and backward bearing using three hole sliding bearings of monolithic construction, supports three of convex screw rod and two recessed screw rods
Sliding bearing be a part, overall processing.Sliding bearing is manufactured with anti-friction bearing alloy material.
According to the present invention, control and the adjustment of axial gap, the pad between former and later two end caps and the pump housing can be passed through
The spacer thickness at thickness and the forward and backward bearing flange back side is adjusted, it is ensured that end part seal performance.
Description of the drawings
Accompanying drawing combines the concrete structure and operation principle that embodiment illustrates the present invention, wherein：
Fig. 1 is the vertical view cutaway drawing of micro- back lash high pressure screw pump；In figure, 1 is convex screw rod, and 2 is fore bearing, before 3 are
End cap, 4 is recessed screw rod one, and 5 is rear bearing, and 6 is rear end cap, and 7 is recessed screw rod two, and 8 is the pump housing.
Fig. 2 is the partial sectional view of the present invention, and in figure, 1 is convex screw rod, 4 be recessed screw rod 1,8 be the pump housing, 9 is hydraulic fluid port.
Fig. 3 is the screw rod sterogram of the present invention.
Specific embodiment
Accompanying drawing is micro- back lash high pressure screw pump of embodiment of the present invention.The method that the present invention uses preferred bus,
Micro- back lash of the Conjugate helical surfaces in single-degree-of-freedom gear motion is formed, screw pump operating pressure is improved.The present invention's
Bus is the interblock space curve that circular arc and transition curve are formed, bus around screw axis constant velocity rotation while, along screw shaft
Line constant speed movement forms spiral camber.Apparatus of the present invention by：1 convex screw rod, 2 fore bearings, 3 drive end bearing brackets, 4 recessed screw rods one, 5 rear axles
Hold, 6 rear end caps, 7 recessed screw rods two, 8 pump housings, 9 hydraulic fluid ports composition.Convex screw rod 1 is engaged with two recessed screw rods 4 and 7, and motor drives convex spiral shell
Bar 1 is rotated, and convex screw rod 1 drives two recessed screw rods 4 and 7 to rotate, and fluid is sucked from oil-in, the oil sealing of Jing screw spiral troughs and plus
Oil-out extrusion is transported to after pressure.
According to this embodiment, with the parameter computational chart of highly-accurate nephelometric titrimetry method and computing formula helical curve is represented
Face.And parameter setting is carried out by use requirement, reach microgap inter_curve length optimum.
Convex screw rod bus data：
Convex screw rod end section shape partial coordinates data such as following table：
Convex screw shaft section shape partial coordinates data such as following table：
Recessed screw rod bus data：
Recessed screw rod end section shape partial coordinates data such as following table：
| x | y | z |
| 52.532946455115 | -25.3390409845616 | 0 |
| 49.6128120283531 | -22.7329688866357 | 0 |
| 47.2417533136833 | -20.1072088504949 | 0 |
| 45.3059856186228 | -17.4710643419962 | 0 |
| 43.7326883922218 | -14.8291817041498 | 0 |
| 42.4730618397578 | -12.183993181412 | 0 |
| 41.4935775490544 | -9.53682678291102 | 0 |
| 40.7711005119573 | -6.88844665734729 | 0 |
| 40.2900373504184 | -4.23932806428158 | 0 |
| 40.0406436575483 | -1.58980128652832 | 0 |
Recessed screw shaft section shape partial coordinates data such as following table：
| x | y | z |
| 0 | -59.9999979172292 | -71.0286356478552 |
| 0 | -56.0051543153906 | -72.0845192498594 |
| 0 | -52.5782320582081 | -73.6330325830904 |
| 0 | -49.6215701453871 | -75.6415479659329 |
| 0 | -47.0831453196475 | -78.089668206815 |
| 0 | -44.9371673018619 | -80.9569754073884 |
| 0 | -43.1738570893504 | -84.214606116402 |
| 0 | -41.7930910916745 | -87.8190340671842 |
| 0 | -40.799814382909 | -91.7082191907486 |
| 0 | -40.2004290631507 | -95.8009428100875 |
| 0 | -40.00802352665 | -99.156724669345 |
According to this embodiment, in centre, in both sides, screw axis are located at same flat two recessed screw rods a convex screw rod 1
In face.Convex screw rod is engaged with recessed screw rod, and engagement contact line is space curve, and along the engagement place of screw axis, engages contact line
It is identical.Convex screw rod 1 is left-handed, recessed screw rod dextrorotation.When convex screw rod 1 is rotated to a direction, two recessed screw rods 4 and 7 are to phase negative side
To rotation.
According to this embodiment, the internal diameter of convex screw rod 1 is identical with the external diameter of recessed screw rod, to improve the moment of torsion of convex screw rod 1
Bearing function power.
According to this embodiment, screw pitch is designed according to traffic requirement, and lift and efficiency of transmission are improved to greatest extent, this
Invention adopts three screw rods.
According to this embodiment, three screw rods adopt forward and backward sliding supported condition.Manufacture for convenience and use, it is ensured that
Shaft end seal performance, forward and backward bearing 2 and 5 supports convex screw rod 1 and two recessed using three hole sliding bearings of monolithic construction
Three sliding bearings of screw rod 4 and 7 be a part, overall processing.Sliding bearing is manufactured with anti-friction bearing alloy material.
According to this embodiment, control and the adjustment of axial gap, can by former and later two end caps 3 and 6 and the pump housing it
Between spacer thickness and the spacer thickness at the flange back side of forward and backward bearing 2 and 5 be adjusted, it is ensured that end part seal performance.
Made in accordance with the present invention micro- back lash high pressure screw pump operating pressure is up to 16MPa, and life and reliability is excellent
It is good.
Claims (7)
1. micro- back lash high pressure screw pump, it is characterised in that the present invention forms conjugation helical curve with the method for preferred bus
Micro- back lash of the face in single-degree-of-freedom gear motion, improves screw pump operating pressure；The bus of the present invention is circular arc and mistake
Line of writing music formed interblock space curve, bus around screw axis constant velocity rotation while along screw axis constant speed movement formed spiral shell
Rotation curved surface；Apparatus of the present invention by：Convex screw rod, fore bearing, drive end bearing bracket, recessed screw rod one, rear bearing, rear end cap, recessed screw rod two, pump
Body, hydraulic fluid port composition；Convex screw rod is engaged with two recessed screw rods, and motor drives convex screw rod to rotate, and convex screw rod drives two recessed screw rods to turn
It is dynamic, fluid is sucked from oil-in, it is transported to oil-out Jing after screw spiral trough oil sealing and pressurization and extrudes.
2. micro- back lash high pressure screw pump as claimed in claim 1, it is characterised in that enter line parameter by use requirement and set
It is fixed, spiral camber is represented with the parameter computational chart of highly-accurate nephelometric titrimetry method and computing formula, reach microgap contact bent
Line length is optimum.
3. micro- back lash high pressure screw pump as claimed in claim 1, it is characterised in that a convex screw rod in centre, two
Recessed screw rod is in both sides, and screw axis are in the same plane, and convex screw rod is engaged with recessed screw rod, and engagement contact line is space curve,
And it is identical along the engagement place engagement contact line of screw axis；Convex screw rod is left-handed, recessed screw rod dextrorotation, when convex screw rod turns to a direction
When dynamic, two recessed screw rods are rotated round about.
4. micro- back lash high pressure screw pump as claimed in claim 1, it is characterised in that the internal diameter of convex screw rod and recessed screw rod
External diameter is identical, improves the moment of torsion bearing function power of convex screw rod.
5. micro- back lash high pressure screw pump as claimed in claim 1, it is characterised in that screw pitch sets according to traffic requirement
Meter, improves to greatest extent lift and efficiency of transmission, and the present invention adopts three screw rods.
6. micro- back lash high pressure screw pump as claimed in claim 1, it is characterised in that three screw rods adopt forward and backward slip
Bearing is supported, and is manufactured for convenience and is used, it is ensured that shaft end seal performance, and forward and backward bearing is using three holes of monolithic construction
Sliding bearing, supports three sliding bearings of convex screw rod and two recessed screw rods for a part, overall processing；Sliding bearing is with resistance to
Mill bearing alloy material manufacture.
7. micro- back lash high pressure screw pump as claimed in claim 1, it is characterised in that the control of axial gap and adjustment,
Can be adjusted by the spacer thickness of the spacer thickness between former and later two end caps and the pump housing and the forward and backward bearing flange back side
It is whole, it is ensured that end part seal performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893720.4A CN106640628A (en) | 2016-10-09 | 2016-10-09 | Micro meshing clearance high-pressure screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893720.4A CN106640628A (en) | 2016-10-09 | 2016-10-09 | Micro meshing clearance high-pressure screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640628A true CN106640628A (en) | 2017-05-10 |
Family
ID=58855746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610893720.4A Pending CN106640628A (en) | 2016-10-09 | 2016-10-09 | Micro meshing clearance high-pressure screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640628A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968942A (en) * | 2017-06-02 | 2017-07-21 | 武汉仁先机械设备有限公司 | A kind of screw drilling tool motor or screw pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448638A (en) * | 2002-04-04 | 2003-10-15 | 邹汉华 | All-extricated contact line single helical-lobe compressor intermeshing pair |
| EP1496257A2 (en) * | 2003-07-10 | 2005-01-12 | Allweiler AG | Screw rotor pump |
| CN101285470A (en) * | 2008-05-09 | 2008-10-15 | 郑良才 | Screw rod of screw compressor |
| CN102022335A (en) * | 2010-12-27 | 2011-04-20 | 上海耐浦流体机械科技有限公司 | Rotor profiles of screw compressors |
| WO2012164381A1 (en) * | 2011-05-31 | 2012-12-06 | Vetco Gray Scandinavia As | An arrangement for direct supply of pumped medium to a twin-screw pump |
| CN203321820U (en) * | 2013-06-14 | 2013-12-04 | 天津华曼泵业集团有限公司 | Three-screw pump support structure |
| CN104008257A (en) * | 2014-06-16 | 2014-08-27 | 北京航空航天大学 | Reversal design method for component with complex curved surface |
| CN105952645A (en) * | 2016-04-08 | 2016-09-21 | 山东伯仲真空设备股份有限公司 | Arc molded line screw rotor for screw vacuum pump |
-
2016
- 2016-10-09 CN CN201610893720.4A patent/CN106640628A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448638A (en) * | 2002-04-04 | 2003-10-15 | 邹汉华 | All-extricated contact line single helical-lobe compressor intermeshing pair |
| EP1496257A2 (en) * | 2003-07-10 | 2005-01-12 | Allweiler AG | Screw rotor pump |
| CN101285470A (en) * | 2008-05-09 | 2008-10-15 | 郑良才 | Screw rod of screw compressor |
| CN102022335A (en) * | 2010-12-27 | 2011-04-20 | 上海耐浦流体机械科技有限公司 | Rotor profiles of screw compressors |
| WO2012164381A1 (en) * | 2011-05-31 | 2012-12-06 | Vetco Gray Scandinavia As | An arrangement for direct supply of pumped medium to a twin-screw pump |
| CN203321820U (en) * | 2013-06-14 | 2013-12-04 | 天津华曼泵业集团有限公司 | Three-screw pump support structure |
| CN104008257A (en) * | 2014-06-16 | 2014-08-27 | 北京航空航天大学 | Reversal design method for component with complex curved surface |
| CN105952645A (en) * | 2016-04-08 | 2016-09-21 | 山东伯仲真空设备股份有限公司 | Arc molded line screw rotor for screw vacuum pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968942A (en) * | 2017-06-02 | 2017-07-21 | 武汉仁先机械设备有限公司 | A kind of screw drilling tool motor or screw pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |