CN208311917U - Oil pump interstage casings molded line structure - Google Patents
Oil pump interstage casings molded line structure Download PDFInfo
- Publication number
- CN208311917U CN208311917U CN201820058389.9U CN201820058389U CN208311917U CN 208311917 U CN208311917 U CN 208311917U CN 201820058389 U CN201820058389 U CN 201820058389U CN 208311917 U CN208311917 U CN 208311917U
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- oil
- molded line
- feed tank
- edge
- interstage casings
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Abstract
The utility model relates to a kind of oil pump interstage casings molded line structures, the interpolar shell is between two-stage gear pump, it is provided with oil-feed tank and out oil groove, the lubricating oil entrance opening dimension of the oil-feed tank is not less than the oil inlet of shell, oil-feed tank inner cavity molded line extends on the basis of prototype line outward to increase oil pocket area, oil groove and the oil-feed tank out is symmetrical, the molded line of the oil-feed tank is extended from interpolar shell oiler top edge to maximum cavity top, to maximum cavity edge, then the crosspoint of gear pump internal-external gear is transitioned on the outside of maximum cavity edge, by prototype line to lower part and after extending downward into minimum point, return to the lower edge of oiler.What the interstage casings molded line of the utility model was constituted obviously increases into and out of oil groove area, can effectively seal into and out of hydraulic fluid port and oil inlet time, complete oil-absorbing process to greatest extent, to meet oil pump low temperature, low pressure, the high-altitude requirement of high speed.
Description
Technical field
The utility model relates to a kind of oil pump interstage casings, especially a kind of oil pump interstage casings molded line structure.
Background technique
Oil pump is distributed in interstage casings into and out of oil groove, and the property of oil pump is directly affected into and out of the structure of oil groove
Can, the structure of existing interstage casings into and out of oil groove is as shown in Figure 1.Since the volume of the structure into and out of oil groove is smaller, work
Oil liquid charging efficiency is very low, though oil pump ground requirement can be met, in aviation field, product in high-altitude in use, by
In high altitude environment, low temperature leads to that lubricating oil is viscous, resistance is big, and low pressure reduces lubricating oil pressure, to will lead under lubricating oil pump capacity
Drop, is unable to satisfy the high-altitude requirement of aeronautical product low temperature, low pressure and high speed.
Summary of the invention
The purpose of the utility model is to provide a kind of oil pump interstage casings molded line structures, can effectively improve oil pump
High-altitude service performance.
The technical solution of the utility model is that the interstage casings are provided with oil-feed tank between two-stage gear pump
Oil groove out, the lubricating oil entrance opening dimension of the oil-feed tank are not less than the oil inlet of shell, and oil-feed tank inner cavity molded line is in prototype line
On the basis of extend outward to increase oil pocket area, it is described to go out oil groove and oil-feed tank is symmetrical.The molded line of the oil-feed tank is
When oil pump forms maximum cavity and is located at highest point, molded line is prolonged from interstage casings oiler top edge to maximum cavity top
It stretches, until non-intersecting with maximum cavity on the outside of maximum cavity edge, i.e. the highest point of molded line, the then mistake on the outside of maximum cavity edge
It crosses to gear pump internal gear and external gear and is located at the top contact point of oiler side, and mutually disjoint with maximum cavity；
Then by prototype line to lower part and after extending downward into minimum point, return to the lower edge of oiler, the molded line minimum point and
Highest point is equidistant with interstage casings transverse central axis respectively.
The interstage casings molded line structure that the utility model patent is to provide, into and out of one end of oil groove in lubricating oil pump case
Into and out of at the maximum position of hydraulic fluid port, the other end increases to the maximum extent in the maximum cavity edge that inner and outer Rotator is formed
Oil inlet groove area and oil groove oil inlet sectional area extend the oil inlet time, farthest complete to reduce the resistance of oil inlet
Oil-absorbing process, while can also effectively seal into and out of hydraulic fluid port, to meet aeronautical product under low-temp low-pressure and high-speed condition
Requirement.What the interstage casings molded line of the utility model was constituted obviously increases into and out of oil groove area, can effectively seal
Into and out of hydraulic fluid port, and the oil inlet time is extended, complete oil-absorbing process to greatest extent, to meet oil pump low temperature, low pressure, high speed
High-altitude requirement.
Detailed description of the invention
Fig. 1 is the molded line structure schematic diagram of former interstage casings；
Fig. 2 is the molded line structure schematic diagram of the interstage casings of the utility model.
Specific embodiment
As shown, the interstage casings of oil pump between two-stage gear pump, are provided with oil-feed tank 3 and out oil groove 5, institute
The lubricating oil entrance opening dimension for the oil-feed tank 3 stated is not less than the oil inlet of shell, and 3 inner cavity molded line 2 of oil-feed tank is on the basis of prototype line
Extend outward to increase oil pocket area, described goes out oil groove 5 and oil-feed tank 3 symmetrically；The molded line 2 of the oil-feed tank 3 is when oil
When pump forms maximum cavity 1 and is located at highest point, molded line 2 is pushed up from interstage casings lubricating oil oiler top edge to maximum cavity 1
Portion extends, until it is non-intersecting with maximum cavity 1 on the outside of 1 edge of maximum cavity, i.e., to the highest point of molded line, then along maximum cavity 1
It is transitioned into gear pump internal gear 7 on the outside of edge and external gear 6 is located at the top contact point of oiler side, and holds with maximum
Chamber 1 mutually disjoints；Then by prototype line to lower part and after extending downward into minimum point, the lower edge of oiler is returned to, it is described
2 minimum point of molded line and highest point are equidistant with interstage casings transverse central axis respectively.
Claims (1)
1. a kind of oil pump interstage casings molded line structure, which is characterized in that the interstage casings between two-stage gear pump,
It is provided with oil-feed tank (3) and out oil groove (5), the lubricating oil entrance opening dimension of the oil-feed tank (3) is not less than the oil inlet of shell, into
The molded line (2) of oil groove (3) extends on the basis of prototype line outward to increase oil pocket area, and described goes out oil groove (5) and oil inlet
Slot (3) is relative to interstage casings longitudinal center axial symmetry；The molded line (2) of the oil-feed tank (3) is when oil pump forms maximum appearance
Chamber (1) and when being located at highest point, molded line (2) is extended from interstage casings lubricating oil oiler top edge at the top of maximum cavity (1),
It is non-intersecting with maximum cavity (1) on the outside of to maximum cavity (1) edge, i.e., to the highest point of molded line, then along maximum cavity (1) side
Be transitioned into gear pump internal gear (7) on the outside of edge and external gear (6) be located at the top contact point of oiler side, and with maximum
Cavity (1) mutually disjoints；Then by prototype line to lower part and after extending downward into minimum point, the lower edge of oiler, institute are returned to
Molded line (2) minimum point stated and highest point are equidistant with interstage casings transverse central axis respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820058389.9U CN208311917U (en) | 2018-01-12 | 2018-01-12 | Oil pump interstage casings molded line structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820058389.9U CN208311917U (en) | 2018-01-12 | 2018-01-12 | Oil pump interstage casings molded line structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208311917U true CN208311917U (en) | 2019-01-01 |
Family
ID=64731809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820058389.9U Active CN208311917U (en) | 2018-01-12 | 2018-01-12 | Oil pump interstage casings molded line structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208311917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061234A (en) * | 2018-01-12 | 2018-05-22 | 中国航发哈尔滨东安发动机有限公司 | A kind of oil pump interstage casings molded line structure |
-
2018
- 2018-01-12 CN CN201820058389.9U patent/CN208311917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061234A (en) * | 2018-01-12 | 2018-05-22 | 中国航发哈尔滨东安发动机有限公司 | A kind of oil pump interstage casings molded line structure |
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