CN1280547C - Filling pump shaft - Google Patents
Filling pump shaft Download PDFInfo
- Publication number
- CN1280547C CN1280547C CN 200410013654 CN200410013654A CN1280547C CN 1280547 C CN1280547 C CN 1280547C CN 200410013654 CN200410013654 CN 200410013654 CN 200410013654 A CN200410013654 A CN 200410013654A CN 1280547 C CN1280547 C CN 1280547C
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- CN
- China
- Prior art keywords
- filling pump
- shaft core
- radial hole
- metal shaft
- core
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- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a filling pump shaft which relates to the improvement of a shaft structure and materials. The surface of the existing filling pump shaft is easy to wear and corrode, and the work efficiency and the product quality of a filling pump is greatly influenced under the condition. A central shaft of a metallic shaft core (1) of the present invention is provided with an axial hole (1-1), and the end head of the axial hole (1-1) is arranged at the edge of the metallic shaft core (1); a set of radial holes (1-2) are arranged on the shaft core (1), and non-metallic coatings (2) are injected in the axial hole (1-1) and the radial holes (1-2) of the metallic shaft core (1) and on the outer surface of the metallic shaft core (1). The product of the present invention has the advantages of high mechanical strength and rigidity, fatigue resistance, wear resistance, radiation resistance, corrosion resistance, high and low temperature resistance, favorable self-lubrication and self-repairability and low noise in operation, has wide development foreground, and is favorable to popularization and application.
Description
Technical field:
The present invention relates to the improvement of a kind of axle (or claiming plunger) structure and material.
Background technique:
Existing Filling pump shaft is metal, real cored structure, because the working surface of axle is a metal material, so the time is long slightly, what be operated in the liquid environment axis surperficial as easy as rolling off a logly is worn and corrodes, and this situation influences the working efficiency and the quality of product of polymer-injecting pump greatly.Along with scientific and technological progress, although adopt some etch-proof ways as spraying or the coating ceramic coating on the metal shaft surface, but because only at metal shaft surface-coated one deck nonmetallic material or metallic material, the nonmetallic material that so not only require to spray can not be blocked up, and between nonmetallic coating and the metal shaft be connected and insecure, so axle is easy to nonmetallic coating is broken away from work, so the corrosion protection of this axle and wear-resisting effect are unsatisfactory, that have even work and to change secondary axes about one month, this has promptly increased labor intensity, increase cost consumption again, caused a large amount of wastes of manpower and materials, reduced working efficiency.
Summary of the invention:
The object of the present invention is to provide all extraordinary Filling pump shaft of a kind of Corrosion Protection and wear-resisting property and self-lubricating property, it comprises metal shaft core 1 and nonmetallic coating 2, metal shaft core 1 has an axial bore 1-1 in central axis, and the axle head at metal shaft core 1 is opened in the termination of axial bore 1-1; Axle also has one group of radial hole 1-2 on the core 1, in the axial bore 1-1 of described metal shaft core 1 and radial hole 1-2 and the outer surface of metal shaft core 1 be injected with nonmetallic coating materials 2.Product of the present invention is provided with axial bore and radial hole simultaneously on the axle core, in processing time, all be injected with nonmetallic material at axial bore and radial hole and an axle wicking surface, like this, the nonmetallic material of the axial bore after solidifying, radial hole and axle wicking surface fixedly become one, it has high impact resistance intensity, not fragmentation or disengaging easily; The present invention adopts the method processing of injection moulding, and nonmetallic coating materials can be coated in the metal shaft wicking surface with thicker thickness, has high wear-resisting property and corrosion resistance and self-repairability; Become 120 degree angles to be provided with between adjacent two radial holes of the present invention, because the angle of radial hole changes, it can make a core material evenly distribute, and has reduced stress, improved nonmetal and metal between binding ability and intensity; With the radial hole grouping, every group of all rectangular and crossing setting can make the large-area even connection of nonmetallic material like this, and it is better that switching performance reaches; Through measuring and calculating and test, the length with existing Filling pump shaft radially is provided with eight through holes and can makes Filling pump shaft reach high impact resistance intensity.The present invention also has the following advantages: 1. it has very strong mechanical strength and rigidity, endurance, and wear-resistant and self lubricity, the wear-resistant degree of product of the present invention is several times to tens times of stainless steel (1Cr18Ni9Ti) material; 2. product radiation hardness of the present invention and corrosion-resistant: it can resist the corrosion of invading of any chemical substance except that the concentrated sulphuric scid, third rare ketone; 3. high temperature resistant and low temperature: it is in high grade in the engineering material of high temperature resistant and low temperature at present, can work under temperature range-100 ℃～+ 280 ℃ of conditions; 4. product of the present invention has flame retarding and the amount of being fuming low, and toughness is good; 5. have workability: except that compression moulding, injection moulding, the section bar that product of the present invention is made can use any machining process to manufacture various precision partss; 6. the nonmetallic material of product external surfaces of the present invention have self lubricity, and it can be used in the oil-free lubrication environment, so its using scope is wide; 7. the working surface of product of the present invention is nonmetal, because friction factor is little, so noise is low work the time.Under the immovable situation of pump structure, the present invention adopts internal structure and the surperficial material that changes axle, and it can improve the working efficiency of pump, has prolonged the working life of pump shaft, for enterprise has saved spending; More favourable part also is, it has saved non-ferrous metal for country: product of the present invention can use No. 45 common steel outsourcings engineering plastics of returning to work to process, it can be applied in the environment of medicine and chemical industry condition very severe, it can replace present stainless steel alloy and use, the wide development prospect is arranged, be beneficial to and apply.
Description of drawings:
Fig. 1 is a structural representation of the present invention, and Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment:
Embodiment one: present embodiment comprises metal shaft core 1 and nonmetallic coating 2, and metal shaft core 1 has an axial bore 1-1 in central axis, and the axle head at metal shaft core 1 is opened in the termination of axial bore 1-1; Axle also has one group of radial hole 1-2 on the core 1, in the axial bore 1-1 of described metal shaft core 1 and radial hole 1-2 and the outer surface of metal shaft core 1 be injected with nonmetallic coating materials 2.
Embodiment two: have one group of radial hole 1-2 on the present embodiment axle core 1, the number of radial hole 1-2 is eight, being 120 degree angles between adjacent two radial hole 1-2 distributes, in the axial bore 1-1 of described metal shaft core 1 and radial hole 1-2 and the outer surface of metal shaft core 1 be injected with nonmetallic coating materials 2, the material of nonmetallic coating 2 is a polyether ether ketone ketone, and all radial hole 1-2 intersect with axial bore 1-1 and at right angles are provided with.
Embodiment three: present embodiment is a preferred version of the present invention: it comprises metal shaft core 1 and nonmetallic coating 2, and described metal shaft core 1 has an axial bore 1-1 in central axis, and the axle head at metal shaft core 1 is opened in the termination of axial bore 1-1; On the outer surface circumference of metal shaft core 1, have groove 1-3, have eight radial hole 1-2 on the axle core 1, the termination of described radial hole 1-2 is arranged in the groove 1-3, eight radial holes are divided into four groups, every group of two radial holes intersect at a right angle, all radial hole 1-2 intersect with axial bore 1-1 and at right angles are provided with axial bore, and being 120 degree angles between adjacent two radial hole 1-2 distributes, promptly a hole in one group of radial hole and a hole in the adjacent group radial hole are 120 degree angles, and the another hole in one group of radial hole is 120 degree angles distributions with the another hole in the adjacent group radial hole.In the axial bore 1-1 of described metal shaft core 1 and radial hole 1-2 and the outer surface of metal shaft core 1 be injected with nonmetallic coating materials 2, the material of nonmetallic coating 2 is polyether ether ketone ketone, i.e. PEESK.
Claims (8)
1, a kind of Filling pump shaft, it comprises metal shaft core (1) and nonmetallic coating (2), it is characterized in that described metal shaft core (1) has an axial bore (1-1) in central axis, the axle head in metal shaft core (1) is opened in the termination of axial bore (1-1); Also have one group of radial hole (1-2) on axle core (1), in the axial bore (1-1) of described metal shaft core (1) and radial hole (1-2) and the outer surface of metal shaft core (1) be injected with nonmetallic coating materials (2).
2, Filling pump shaft according to claim 1 is characterized in that having groove (1-3) on the outer surface circumference of metal shaft core (1), and the termination of described radial hole (1-2) is arranged in the groove (1-3).
3, Filling pump shaft according to claim 1 is characterized in that described radial hole (1-2) and axial bore (1-1) intersect and at right angles setting.
4,, it is characterized in that being between adjacent two radial holes (1-2) 120 degree angles and distribute according to claim 1 or 2 or 3 described Filling pump shafts.
5, according to claim 1 or 2 or 3 described Filling pump shafts, the number that it is characterized in that described radial hole (1-2) is eight.
6, Filling pump shaft according to claim 4, the number that it is characterized in that described radial hole (1-2) is eight.
7, Filling pump shaft according to claim 5 is characterized in that eight radial holes are divided into four groups, the setting that intersects at a right angle of every group of two radial holes.
8, according to claim 1 or 2 or 3 described Filling pump shafts, the material that it is characterized in that described nonmetallic coating (2) is a polyether ether ketone ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013654 CN1280547C (en) | 2004-03-31 | 2004-03-31 | Filling pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013654 CN1280547C (en) | 2004-03-31 | 2004-03-31 | Filling pump shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563723A CN1563723A (en) | 2005-01-12 |
| CN1280547C true CN1280547C (en) | 2006-10-18 |
Family
ID=34478232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410013654 Expired - Fee Related CN1280547C (en) | 2004-03-31 | 2004-03-31 | Filling pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1280547C (en) |
-
2004
- 2004-03-31 CN CN 200410013654 patent/CN1280547C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1563723A (en) | 2005-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061018 Termination date: 20120331 |