CN109209864A - A kind of novel tooth form based on mixed transportation of oil and gas Quimby pump - Google Patents
A kind of novel tooth form based on mixed transportation of oil and gas Quimby pump Download PDFInfo
- Publication number
- CN109209864A CN109209864A CN201710589684.7A CN201710589684A CN109209864A CN 109209864 A CN109209864 A CN 109209864A CN 201710589684 A CN201710589684 A CN 201710589684A CN 109209864 A CN109209864 A CN 109209864A
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- CN
- China
- Prior art keywords
- tooth
- circular arc
- curve
- radius
- screw
- 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
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Classifications
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- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- 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
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- 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
- F04C2240/10—Stators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of novel tooth form curves based on mixed transportation of oil and gas dual-screw pump screw, it is made of the tooth curve ABCDEFGH on screw rod cross section, F is on flank of tooth central diameter R2, C, D, E is on root circle, G, H, A is on the outside circle that radius is R3, curve AB is the circular arc line that radius is R1, the circular arc line and outside circle are tangent, BC curve is the cycloid envelope using AB circular arc line as baseline, CDE is the circular arc of root circle, GHA is the circular arc of outside circle, FG is involute, EF is the cycloid envelope using FG involute as baseline, meet relational expression 0.03R3≤R1≤0.04R3 between arc radius R1 and radius of addendum R3.The positive effect of the present invention is that it seals tooth curve and has good abrasion resistant qualities, makes the tooth-shaped screw bolt for that can reach ideal sealing effect and good wearability when mixed transportation of oil and gas.
Description
Technical field
The present invention relates to Quimby pump, especially a kind of novel tooth form based on mixed transportation of oil and gas dual-screw pump screw.
Background technique
In the prior art, the tooth form for mixed transportation of oil and gas dual-screw pump screw is divided into two classes, i.e., non-tight molded line and
Seal molded line.The former is such as ladder-shaped, rectangle molded line, A shape molded line, B shape molded line and symmetrical elongation cycloid molded line etc..These are double
The molded line of screw rod belongs to non-tight molded line, when the intermeshing of the tooth form of two screw rods, driving screw rod, driven screw and pump case
It is not completely enclosed " seal chamber " that inner hole, which is formed by cavity volume, and volumetric efficiency is low, and it is defeated can not to adapt to long-distance pipe
It send, especially in mixed transportation of oil and gas, the variation to fluidised form and void fraction can not be adapted to；And seal molded line, that is, use single pendulum
Line curve, though stringent sealing can be reached, since the sealing molded line of formation is acute angle, by sand grains during mixed transportation of oil and gas
The influence of equal rigid solids impurity, sealing molded line will soon be worn, and lead to the volumetric efficiency decline of pump.
Summary of the invention
The purpose of the present invention is to provide a kind of tooth curves, when so that it being used for mixed transportation of oil and gas, can reach
Ideal sealing effect, and can guarantee the tooth-shaped screw bolt of good wearability.
Tooth curve of the invention is made of, which is characterized in that F the tooth curve ABCDEFGH on screw rod cross section
In flank of tooth central diameter, C, D, E are on root circle, and on outside circle, curve AB is circular arc line, the circular arc line and outside circle by G, H, A
Tangent, BC curve is the cycloid envelope using AB circular arc line as baseline, and CDE is the circular arc of root circle, and GHA is the circle of outside circle
Arc, FG are involute, and EF is the cycloid envelope using FG involute as baseline.
The positive effect of the present invention be its seal tooth curve have good abrasion resistant qualities, it be with circular arc line with
And using its as the previous single cycloidal curve of the cycloid envelope of baseline substitution or other with angular curve, make the tooth form spiral shell
Bar is used to that ideal sealing effect and good wearability can be reached when mixed transportation of oil and gas.
Below by attached drawing the specific structure and its sealing mechanism that the present invention will be described in detail.
Detailed description of the invention
Fig. 1 is tooth curve of the invention, is made of curve ABCDEFGH；
Fig. 2 is the partial enlarged view of curve AB in Fig. 1；
Fig. 3 is that Fig. 2 tooth shape of screw is used for mesh schematic representation when Quimby pump.
Specific embodiment
Fig. 1 is tooth curve of the invention, and curve ABCDEFGH is the tooth curve on screw rod cross section, and F is in the flank of tooth
On diameter R2, C, D, E are on root circle, and on outside circle R3, curve AB is the circular arc line that radius is R1, circular arc line R1 by G, H, A
Tangent with outside circle R3, BC curve is the cycloid envelope using AB circular arc line as baseline.CDE is the circular arc of root circle, and GHA is tooth
The circular arc of tip circle, FG are involute, and EF is the cycloid envelope with FG line segment (involute) for baseline.
Pass to make the segment hub seal flank of tooth reach optimal wear-resisting property, between arc radius R1 and radius of addendum R3
It is formula is 0.03R3≤R1≤0.04R3.
The present invention can be made into left-handed screw, may be alternatively configured right handed screw.
When the present invention is used for Quimby pump, for adjacent screws only in hand of spiral difference, tooth-shape structure is identical.
This sealing tooth-shaped molded line that the present invention uses, driving and driven screw rod is in engagement process, although cannot make them
The seal chamber being theoretically fully sealed is formed between pump case inner hole, but since sealing molded line is circular arc camber, with single pendulum
The line contact sealing that line is formed is compared, and the wear resistance of screw rod flank profil is greatly improved, and is effectively improved operating and is used
Service life is more suitable for mixed transportation of oil and gas occasion.
Claims (3)
1. a kind of novel tooth form curve based on mixed transportation of oil and gas dual-screw pump screw, by the tooth curve on screw rod cross section
ABCDEFGH is formed, which is characterized in that F is on flank of tooth central diameter R2, and C, D, E are on root circle, and G, H, A are in the tooth that radius is R3
On tip circle, curve AB is the circular arc line that radius is R1, and the circular arc line and outside circle are tangent, and BC curve is using AB circular arc line as baseline
Cycloid envelope, CDE be root circle circular arc, GHA be outside circle circular arc, FG is involute, and EF is to be with FG involute
The cycloid envelope of baseline, meets relational expression 0.03R3≤R1≤0.04R3 between arc radius R1 and radius of addendum R3.
2. tooth curve according to claim 1, it is characterised in that left-handed screw can be made into, may be alternatively configured right handed screw.
3. tooth curve according to claim 1, it is characterised in that when being used for Quimby pump, adjacent screws are only in screw thread side
To difference, tooth-shape structure is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589684.7A CN109209864A (en) | 2017-07-05 | 2017-07-05 | A kind of novel tooth form based on mixed transportation of oil and gas Quimby pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589684.7A CN109209864A (en) | 2017-07-05 | 2017-07-05 | A kind of novel tooth form based on mixed transportation of oil and gas Quimby pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209864A true CN109209864A (en) | 2019-01-15 |
Family
ID=64991781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710589684.7A Pending CN109209864A (en) | 2017-07-05 | 2017-07-05 | A kind of novel tooth form based on mixed transportation of oil and gas Quimby pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209864A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2358252Y (en) * | 1999-02-03 | 2000-01-12 | 天津市科技投入公司 | Quimby pump screw with new tooth form molded line |
| CN1299929A (en) * | 2001-01-21 | 2001-06-20 | 华南理工大学 | Toothed screw bolt |
| CN1299930A (en) * | 2001-01-21 | 2001-06-20 | 华南理工大学 | Toothed screw bolt |
| CN203756515U (en) * | 2013-11-19 | 2014-08-06 | 内蒙古工业大学 | Screws with novel geometric tooth form of two-screw pump |
| CN105484999A (en) * | 2015-12-29 | 2016-04-13 | 天津华科螺杆泵技术有限公司 | Sealed single-head spiral screw and double screws thereof |
| CN205533212U (en) * | 2016-04-22 | 2016-08-31 | 山东伯仲真空设备股份有限公司 | Novel trochoid screw vacuum pump rotor molded lines |
| CN106762661A (en) * | 2016-01-11 | 2017-05-31 | 台州职业技术学院 | A kind of dry screw vacuum pump screw rotor end face molded line |
-
2017
- 2017-07-05 CN CN201710589684.7A patent/CN109209864A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2358252Y (en) * | 1999-02-03 | 2000-01-12 | 天津市科技投入公司 | Quimby pump screw with new tooth form molded line |
| CN1299929A (en) * | 2001-01-21 | 2001-06-20 | 华南理工大学 | Toothed screw bolt |
| CN1299930A (en) * | 2001-01-21 | 2001-06-20 | 华南理工大学 | Toothed screw bolt |
| CN203756515U (en) * | 2013-11-19 | 2014-08-06 | 内蒙古工业大学 | Screws with novel geometric tooth form of two-screw pump |
| CN105484999A (en) * | 2015-12-29 | 2016-04-13 | 天津华科螺杆泵技术有限公司 | Sealed single-head spiral screw and double screws thereof |
| CN106762661A (en) * | 2016-01-11 | 2017-05-31 | 台州职业技术学院 | A kind of dry screw vacuum pump screw rotor end face molded line |
| CN205533212U (en) * | 2016-04-22 | 2016-08-31 | 山东伯仲真空设备股份有限公司 | Novel trochoid screw vacuum pump rotor molded lines |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190115 |