CN102179679A - Composite screw of high-pressure double-screw multiphase pump for discharging lightweight oil and machining method thereof - Google Patents
Composite screw of high-pressure double-screw multiphase pump for discharging lightweight oil and machining method thereof Download PDFInfo
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- CN102179679A CN102179679A CN 201110049886 CN201110049886A CN102179679A CN 102179679 A CN102179679 A CN 102179679A CN 201110049886 CN201110049886 CN 201110049886 CN 201110049886 A CN201110049886 A CN 201110049886A CN 102179679 A CN102179679 A CN 102179679A
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Abstract
The invention discloses a composite screw of a high-pressure double-screw multiphase pump for discharging lightweight oil and a machining method thereof. Steel threads (2) are machined on a steel central shaft (1) to form a steel threaded helical surface, and are equally divided into a plurality of copper material penetration holes (3) in the axial direction; and copper materials are cast at the position of the steel threaded helical surface on the steel central shaft (1), are penetrated into the copper material penetration holes (3) and are coated outside the steel threaded helical surface to form a copper threaded helical surface (4). The machining method comprises the following steps of: machining the steel threads on the steel central shaft to form the steel threaded helical surface; equally dividing the steel threads into a plurality of copper penetration holes with the diameter of between 6 and 10 mm in the axial direction; modeling cast cladding copper by using an aluminum die; heating the steel central shaft; and putting the steel threaded helical surface of the steel central shaft into a die cavity for copper casting to form the copper threaded helical surface. By the machining method, the bonding area of two materials is increased, the bonding strength is enhanced, the rigidity of the composite screw is improved, the copper materials have small using amount and are saved, and the production cost is low.
Description
Technical field
The present invention relates to screw rod and processing method thereof, be specifically related to a kind of complex screw and processing method thereof of the light oil high pressure double-screw mixing transmission pump of removing stage makeup and costume.
Background technology
As everyone knows, double-screw mixing transmission pump belongs to positive displacement pump, owing to have many advantages, and stronger mixed Movement Capabilities is arranged, and so application is wide, amount is big.If but the main overcurrent position screw spiral of pump partly is a steel material, when being applied to oil tanker, railway oil depot tank car or similar operating mode are removed stage makeup and costume in the light oil process, because of the light oil flash-point low, as gasoline (20-60 ℃), pump is in use just in case lead, driven screw rod generation axial float, because of the master, the helicoid that driven screw rod matches axial monolateral fit clearance each other is little, be 0.08-0.1mm, when the shifting amount of axle greater than axial monolateral gap, to cause main, collision mutually takes place and produces spark in driven screw spiral face, cause the light oil blast, burning causes immeasurable loss to oil depot.In order to guarantee that pump is in the light oil process safe of removing stage makeup and costume, present method is with the main overcurrent of the medium of pump position master, driven screw flight helicoid changes copper material into by steel material, i.e. recessing on the outer wall of steel core axle, copper sheathing cooperates the groove cast packet of steel core axle outside the steel core axle through the protruding rafter on its inwall, machining screw helicoid on the outer wall of copper sheathing, constitute whole complex screw, there is following problem in the complex screw of this kind version: one, the faying face of copper sheathing and steel core axle is little, the intensity of complex screw is little, is mainly used in the lower pump of discharge pressure; Two, machining screw helicoid on the outer wall of copper sheathing, the copper sheathing consumption is big, waste is high.
Summary of the invention
The objective of the invention is to: complex screw and processing method thereof that a kind of light oil high pressure double-screw mixing transmission pump of removing stage makeup and costume is provided, adopt this processing method processing complex screw, this complex screw is applied to the high pressure double-screw mixing transmission pump light oil of removing stage makeup and costume, the rigidity intensity of screw rod is big, the discharge pressure of pump is big, and security performance is good.
Technical solution of the present invention is: complex screw comprises steel core axle and copper thread helix face, the position machining steel screw thread of the copper thread helix face of design forms steel thread helix face on the steel core axle, the axial five equilibrium of steel screw thread is broken some copper materials and is infiltrated the hole, be positioned at the position cast copper of steel thread helix face on the steel core axle, copper material infiltrates copper material infiltration hole and is wrapped in outside the steel thread helix face, forms copper thread helix face.
Wherein, the processing method of complex screw is: at first, get the steel core axle, the position machining steel screw thread of the copper thread helix face of design forms steel thread helix face on the steel core axle; Secondly, the axial five equilibrium of steel screw thread is beaten some ￠ 6-10mm copper materials infiltrations hole; Then, cast packet copper aluminum dipping form moulding; At last, heating steel core axle is inserted cast copper in the die cavity with the steel thread helix face of steel core axle, forms copper thread helix face.
The present invention has the following advantages: one, increased the bonded area of two kinds of materials, strengthened bond strength, increased the rigidity of complex screw, the discharge pressure of pump reaches 2.5MPa; Two, the position cast copper that is positioned at steel thread helix face on the steel core axle forms copper thread helix face, and the copper material consumption is little, saves copper material, and production cost is low.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1 steel core axle, 2 steel screw threads, 3 copper materials infiltrate hole, 4 copper thread helix faces.
The specific embodiment
As shown in Figure 1, complex screw comprises steel core axle 1 and copper thread helix face 4, the position machining steel screw thread 2 of the copper thread helix face of design forms steel thread helix face on steel core axle 1, the axial five equilibrium of steel screw thread 2 is broken some copper materials and is infiltrated hole 3, be positioned at the position cast copper of steel thread helix face on the steel core axle 1, copper material infiltrates copper material infiltration hole 3 and is wrapped in outside the steel thread helix face, forms copper thread helix face 4.
Further specify technical solution of the present invention below in conjunction with specific embodiment, these embodiment can not be interpreted as it is restriction to technical solution.
Embodiment 1: process complex screw according to following steps: at first, get the steel core axle, the position machining steel screw thread of the copper thread helix face of design forms steel thread helix face on the steel core axle; Secondly, the axial five equilibrium of steel screw thread is made a call to 3 ￠ 10mm copper materials infiltration holes; Then, cast packet copper aluminum dipping form moulding; At last, heating steel core axle is inserted cast copper in the die cavity with the steel thread helix face of steel core axle, forms copper thread helix face.
Embodiment 2: process complex screw according to following steps: at first, get the steel core axle, the position machining steel screw thread of the copper thread helix face of design forms steel thread helix face on the steel core axle; Secondly, the axial five equilibrium of steel screw thread is made a call to 5 ￠ 8mm copper materials infiltration holes; Then, cast packet copper aluminum dipping form moulding; At last, heating steel core axle is inserted cast copper in the die cavity with the steel thread helix face of steel core axle, forms copper thread helix face.
Embodiment 3: process complex screw according to following steps: at first, get the steel core axle, the position machining steel screw thread of the copper thread helix face of design forms steel thread helix face on the steel core axle; Secondly, the axial five equilibrium of steel screw thread is made a call to 8 ￠ 6mm copper materials infiltration holes; Then, cast packet copper aluminum dipping form moulding; At last, heating steel core axle is inserted cast copper in the die cavity with the steel thread helix face of steel core axle, forms copper thread helix face.
Claims (2)
1. the remove stage makeup and costume complex screw of light oil high pressure double-screw mixing transmission pump, it is characterized in that: complex screw comprises steel core axle (1) and copper thread helix face (4), the position machining steel screw thread (2) of going up the copper thread helix face of design at steel core axle (1) forms steel thread helix face, the axial five equilibrium of steel screw thread (2) is broken some copper materials and is infiltrated hole (3), be positioned at the position cast copper of steel thread helix face on the steel core axle (1), copper material infiltrates copper material infiltration hole (3) and is wrapped in outside the steel thread helix face, forms copper thread helix face (4).
2. the remove stage makeup and costume processing method of complex screw of light oil high pressure double-screw mixing transmission pump, the processing method that it is characterized in that complex screw may further comprise the steps: at first, get the steel core axle, the position machining steel screw thread of the copper thread helix face of design forms steel thread helix face on the steel core axle; Secondly, the axial five equilibrium of steel screw thread is beaten some ￠ 6-10mm copper materials infiltrations hole; Then, cast packet copper aluminum dipping form moulding; At last, heating steel core axle is inserted cast copper in the die cavity with the steel thread helix face of steel core axle, forms copper thread helix face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110049886 CN102179679A (en) | 2011-03-02 | 2011-03-02 | Composite screw of high-pressure double-screw multiphase pump for discharging lightweight oil and machining method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110049886 CN102179679A (en) | 2011-03-02 | 2011-03-02 | Composite screw of high-pressure double-screw multiphase pump for discharging lightweight oil and machining method thereof |
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| Publication Number | Publication Date |
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| CN102179679A true CN102179679A (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110049886 Pending CN102179679A (en) | 2011-03-02 | 2011-03-02 | Composite screw of high-pressure double-screw multiphase pump for discharging lightweight oil and machining method thereof |
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| CN (1) | CN102179679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203599A (en) * | 2013-04-03 | 2013-07-17 | 威海智德真空科技有限公司 | Method for manufacturing hollow stainless steel screws |
Citations (7)
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| JP2006188749A (en) * | 2004-12-09 | 2006-07-20 | Sanalloy Industry Co Ltd | High-strength hard metal, production method therefor, and tool using it |
| CN1913994A (en) * | 2004-02-04 | 2007-02-14 | Gkn烧结金属股份有限公司 | Sheet material infiltration of powder metal parts |
| CN2937709Y (en) * | 2006-08-09 | 2007-08-22 | 刘明强 | Nut of steel-base compsite double-metal valve steam |
| CN101121197A (en) * | 2006-08-09 | 2008-02-13 | 刘明强 | Method for steel based compositing copper alloy |
| CN201344238Y (en) * | 2009-01-14 | 2009-11-11 | 山东唯科得复合金属有限公司 | Steel-based gear composite copper alloy bimetallic valve rod and screw |
| CN201475111U (en) * | 2009-06-03 | 2010-05-19 | 徐炳岳 | Detachable hydraulic close-fitting bolt |
| CN201972922U (en) * | 2011-03-02 | 2011-09-14 | 淮安市琥达液压机械有限公司 | Composite screw rod of high-pressure double-screw-rod multiphase pump for loading and unloading light oil |
-
2011
- 2011-03-02 CN CN 201110049886 patent/CN102179679A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913994A (en) * | 2004-02-04 | 2007-02-14 | Gkn烧结金属股份有限公司 | Sheet material infiltration of powder metal parts |
| JP2006188749A (en) * | 2004-12-09 | 2006-07-20 | Sanalloy Industry Co Ltd | High-strength hard metal, production method therefor, and tool using it |
| CN2937709Y (en) * | 2006-08-09 | 2007-08-22 | 刘明强 | Nut of steel-base compsite double-metal valve steam |
| CN101121197A (en) * | 2006-08-09 | 2008-02-13 | 刘明强 | Method for steel based compositing copper alloy |
| CN201344238Y (en) * | 2009-01-14 | 2009-11-11 | 山东唯科得复合金属有限公司 | Steel-based gear composite copper alloy bimetallic valve rod and screw |
| CN201475111U (en) * | 2009-06-03 | 2010-05-19 | 徐炳岳 | Detachable hydraulic close-fitting bolt |
| CN201972922U (en) * | 2011-03-02 | 2011-09-14 | 淮安市琥达液压机械有限公司 | Composite screw rod of high-pressure double-screw-rod multiphase pump for loading and unloading light oil |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203599A (en) * | 2013-04-03 | 2013-07-17 | 威海智德真空科技有限公司 | Method for manufacturing hollow stainless steel screws |
| CN103203599B (en) * | 2013-04-03 | 2017-07-28 | 威海智德真空科技有限公司 | A kind of manufacture method of stainless steel hollow screw |
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Application publication date: 20110914 |