CN204921358U - A high viscosity melt pump for extruder - Google Patents
A high viscosity melt pump for extruder Download PDFInfo
- Publication number
- CN204921358U CN204921358U CN201520639444.XU CN201520639444U CN204921358U CN 204921358 U CN204921358 U CN 204921358U CN 201520639444 U CN201520639444 U CN 201520639444U CN 204921358 U CN204921358 U CN 204921358U
- Authority
- CN
- China
- Prior art keywords
- driving shaft
- step hole
- left end
- shaft
- gear
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a high viscosity melt pump for extruder, including the box, the box both ends are installed left end lid and right -hand member respectively and approximately, are equipped with driving shaft and driven shaft in the box, have the driving gear on the driving shaft, have on the driven shaft with driving gear engaged with driven gear, the left end is covered and is equipped with a pair of blind hole that supports driving shaft left end and driven shaft left end that is used for respectively rotating, the blind hole that is equipped with the step hole and is used for rotate supporting the driven shaft right -hand member is covered to the right -hand member, and the step hole includes the macropore and be used for rotating the aperture that supports driving gear right side driving shaft, and the driving shaft right -hand member stretches out outward to the box through step hole macropore, and the step hole is big downtheholely to be equipped with fixed suit and at the epaxial left -hand thread rotary seal cover of initiative, all to be equipped with the lubrication groove on the pore wall of step hole aperture and blind hole. The utility model discloses simple structure, high temperature resistant, corrosion -resistant, difficult seepage can realize stable extruding, have prolonged the life -span of extruder.
Description
Technical field
The utility model relates to a kind of high-viscosity melt pump for extruder.
Background technique
Melt Pump is mainly for delivery of, supercharging and the metering high-temp high-viscosity polymer melt from extruder, and it has been widely used on the production lines such as chemical fibre, granulation, plastic pellicle, sheet material, sheet material, section bar, tubing, electric wire, wire drawing, compound extruded.Part Melt Pump in the market also exists the defects such as non-refractory, perishable, easy seepage, complex structure.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provides a kind of high-viscosity melt pump for extruder, and this Melt Pump structure is simple, be not easy seepage.
The utility model solves the technological scheme that its technical problem adopts: a kind of high-viscosity melt pump for extruder, comprise casing, tank ends is separately installed with left end cap and right end cap, driving shaft and driven shaft is provided with in casing, driving shaft has driving gear, driven shaft has the driven gear be meshed with driving gear, described left end cap is provided with the blind hole being respectively used to rotational support driving shaft left end and driven shaft left end for a pair, described right end cap is provided with step hole and the blind hole for rotational support driven shaft right-hand member, step hole comprises macropore and the aperture for driving shaft on the right side of rotational support driving gear, driving shaft right-hand member is stretched out outside casing by step hole macropore, the left-hand thread rotary seal cover be fixedly set on driving shaft is provided with in step hole macropore, the hole wall of step hole aperture and blind hole is equipped with lubrication groove.
Described driving gear and driven gear are helical gear, and its pressure angle is 25 ° ~ 30 °.
Described driving shaft, driven shaft, driving gear, driven gear and left-hand thread rotary seal cover surface are equipped with iron nitride coating.
The beneficial effects of the utility model are: the utility model structure is simple, high temperature resistant, corrosion-resistant, be not easy seepage, can realize stable extruding, extend the life-span of extruder.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
In figure: 1. casing; 2. left end cap; 3. right end cap; 4. driving shaft; 5. driven shaft; 6. driving gear; 7. driven gear; 8. blind hole; 9. step hole; 10. left-hand thread rotary seal cover; 11. annular edge; 12. high temperature resistant end-face seal rings.
Embodiment
By reference to the accompanying drawings the utility model is further described now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of high-viscosity melt pump for extruder as shown in Figure 1, comprise casing 1, casing 1 two ends are separately installed with left end cap 2 and right end cap 3, left end cap 2 and right end cap 3 have the inserting end stretching into casing 1 inner chamber respectively, driving shaft 4 and driven shaft 5 is provided with in casing 1, driving shaft 4 has driving gear 6, driven shaft 5 has the driven gear 7 be meshed with driving gear 6, described left end cap 2 is provided with the blind hole 8 being respectively used to rotational support driving shaft 4 left end and driven shaft 5 left end for a pair, described right end cap 3 is provided with step hole 9 and the blind hole 8 for rotational support driven shaft 5 right-hand member, step hole 9 comprises macropore and the aperture for driving shaft 4 on the right side of rotational support driving gear 6, the drive end of driving shaft 4 right-hand member is stretched out outside casing 1 by step hole 9 macropore, the left-hand thread rotary seal cover 10 be fixedly set on driving shaft 4 is provided with in step hole 9 macropore, the hole wall of step hole 9 aperture and blind hole 8 is equipped with lubrication groove (not shown), lubrication groove one end is communicated with the discharge port (not shown) on casing 1 by the melt input channel (not shown) being arranged on left end cap 2 and/or right end cap 3 inside, the lubrication groove the other end is communicated with the material feeding mouth (not shown) on casing 1 by the melt output channel (not shown) being arranged on left end cap 2 and/or right end cap 3 inside.
Described driving gear 6 and driven gear 7 are helical gear, and its pressure angle is 25 ° ~ 30 °.
Described driving shaft 4, driven shaft 5, driving gear 6, driven gear 7 and left-hand thread rotary seal are overlapped 10 surfaces and are equipped with iron nitride coating.
During work, high molecular polymer melt enters in casing 1 from the material feeding mouth casing 1, the discharge outlet be delivered on casing 1 by the driving gear 6 be rotating and driven gear 7 is extruded, a part of melt of discharge outlet is successively by melt input channel, lubrication groove, melt output channel is back to the material feeding mouth place of casing 1, a part of melt in lubrication groove defines the lubricating film of lubricate on the hole wall of blind hole 8 and step hole 9 aperture, in order to extend the life-span of Melt Pump, simultaneously, melt a small amount of in step hole 9 aperture can enter in the annular space that left-hand thread rotary seal overlaps between 10 outer peripheral surfaces and macropore at the step place of step hole 9, overlap 10 outer peripheral surfaces due to left-hand thread rotary seal and be provided with left-hand thread for returning charge, thus entering melt in annular space can the step place of squeezed time step hole 9, thus serve seal action, and left-hand thread rotary seal is overlapped 10 outer ends and is also had the annular edge 11 extended radially outward, high temperature resistant end-face seal ring 12 is provided with between annular edge 11 interior edge face and relative right end cap 3 exterior edge face, in order to improve the sealing of this Melt Pump further.
Above-mentioned mode of execution is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (3)
1. the high-viscosity melt pump for extruder, comprise casing (1), casing (1) two ends are separately installed with left end cap (2) and right end cap (3), driving shaft (4) and driven shaft (5) is provided with in casing (1), driving shaft (4) has driving gear (6), driven shaft (5) has the driven gear (7) be meshed with driving gear (6), it is characterized in that: described left end cap (2) is provided with the blind hole (8) being respectively used to rotational support driving shaft (4) left end and driven shaft (5) left end for a pair, described right end cap (3) is provided with step hole (9) and the blind hole (8) for rotational support driven shaft (5) right-hand member, step hole (9) comprises macropore and the aperture for rotational support driving gear (6) right side driving shaft (4), driving shaft (4) right-hand member is stretched out outside casing (1) by step hole (9) macropore, the left-hand thread rotary seal cover (10) be fixedly set on driving shaft (4) is provided with in step hole (9) macropore, the hole wall of step hole (9) aperture and blind hole (8) is equipped with lubrication groove.
2. the high-viscosity melt pump for extruder according to claim 1, is characterized in that: described driving gear (6) and driven gear (7) are helical gear, and its pressure angle is 25 ° ~ 30 °.
3. the high-viscosity melt pump for extruder according to claim 1, is characterized in that: described driving shaft (4), driven shaft (5), driving gear (6), driven gear (7) and left-hand thread rotary seal cover (10) surface are equipped with iron nitride coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639444.XU CN204921358U (en) | 2015-08-21 | 2015-08-21 | A high viscosity melt pump for extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639444.XU CN204921358U (en) | 2015-08-21 | 2015-08-21 | A high viscosity melt pump for extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921358U true CN204921358U (en) | 2015-12-30 |
Family
ID=54970492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520639444.XU Expired - Fee Related CN204921358U (en) | 2015-08-21 | 2015-08-21 | A high viscosity melt pump for extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878387A (en) * | 2020-07-14 | 2020-11-03 | 河南航天液压气动技术有限公司 | Gear pump |
-
2015
- 2015-08-21 CN CN201520639444.XU patent/CN204921358U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878387A (en) * | 2020-07-14 | 2020-11-03 | 河南航天液压气动技术有限公司 | Gear pump |
| CN111878387B (en) * | 2020-07-14 | 2022-08-12 | 河南航天液压气动技术有限公司 | Gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180821 |