CN215891002U - High-precision aircraft engine gear - Google Patents
High-precision aircraft engine gear Download PDFInfo
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- CN215891002U CN215891002U CN202121479273.0U CN202121479273U CN215891002U CN 215891002 U CN215891002 U CN 215891002U CN 202121479273 U CN202121479273 U CN 202121479273U CN 215891002 U CN215891002 U CN 215891002U
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Abstract
The utility model belongs to the technical field of aero-engine gears, and particularly discloses a high-precision aero-engine gear which comprises a web plate, a gear ring, a connecting shaft and a connecting shaft, wherein the web plate is arranged on the inner side of the gear ring and used for supporting, the gear ring is arranged on the outer side of the web plate and used for power transmission, the connecting shaft is fixedly arranged on one side surface of the web plate, which is close to the large end of the gear ring, and the connecting shaft and the web plate are coaxially arranged; when the gear runs, lubricating oil in the first annular oil storage tank and the second annular oil storage tank diffuses around under the action of centrifugal force and flows into the tooth grooves through the first oil guide hole and the second oil guide hole respectively.
Description
Technical Field
The utility model relates to the technical field of aero-engine gears, in particular to a high-precision aero-engine gear.
Background
The accessory transmission gear box is used for accessory transmission and is an important part of an aircraft engine, and because lubricating oil in the gear box can fluctuate when gears in the gear box run at a high speed, the lubricating oil in the gear box cannot be in a full state, and the lubricating oil is prevented from overflowing, so the gears in the gear box cannot be completely covered by the oil.
Chinese patent discloses a bevel gear and aeroengine accessory gear box (publication number CN109139860A), this patent technique is provided with the support boss of protrusion in the tip on the web, so can utilize this support boss to support this bevel gear when bevel gear is placing, avoid the teeth of a cogwheel of bevel gear to take place to collide with, the damage, improve the convenience that bevel gear placed in production, installation, transportation and so on, however, its gear is when operating, the teeth of a cogwheel that are located fluid are in fluid lubricated state, when the teeth of a cogwheel rotate to not contact with lubricating oil, under the effect of centrifugal force, lubricating oil on the teeth of a cogwheel is less, when the meshing point of gear is located the lubricating oil zone outsidely, frictional force between the gear is great, lead to the wearing and tearing of gear great, the transmission precision decline of gear is very fast. Accordingly, those skilled in the art have provided high precision aircraft engine gears to address the problems set forth in the background above.
SUMMERY OF THE UTILITY MODEL
The present invention aims to provide a high-precision aeroengine gear which solves the problems set forth in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme:
the high-precision aircraft engine gear comprises a web, a gear ring, a connecting shaft, an oil storage ring, a plurality of first oil guide holes and a plurality of second oil guide holes, wherein the web is arranged on the inner side of the gear ring and used for supporting, the gear ring is arranged on the outer side of the web and used for power transmission, the connecting shaft is fixedly arranged on one side surface, close to the large end of the gear ring, of the web, the oil storage ring is coaxially arranged with the web, a first annular oil storage groove used for storing lubricating oil is formed in one side surface, close to the small end of the gear ring, of the web, a first mounting groove used for placing the oil storage ring is formed in one side surface, close to the gear ring, of the first annular oil storage groove is fixedly provided with the oil storage ring used for absorbing the lubricating oil, a plurality of first oil guide holes used for guiding flow are formed in one side, close to the small end of the gear ring, the first oil guide holes are respectively arranged on tooth grooves of the gear ring, one end of the first oil guide holes is communicated with the first mounting groove, the other end of the first oil guide hole is communicated with the tooth groove of the gear ring.
As a still further scheme of the utility model: the web is close to a side of ring gear main part offers the second annular oil storage tank that is used for storing lubricating oil, the second annular oil storage tank is close to a side of ring gear offers and is used for placing the second mounting groove of oil storage ring, second mounting groove internal stability is equipped with the oil storage ring that is used for absorbing lubricating oil, the web is close to one side of ring gear main part offers a plurality of second oil guide hole that is used for the water conservancy diversion, a plurality of second oil guide hole distributes and arranges on the tooth's socket of ring gear, the one end of second oil guide hole with the second mounting groove link up, the other end of second oil guide hole with the tooth's socket link up.
As a still further scheme of the utility model: the cross sections of the first installation groove and the second installation groove, where the axes of the web plates are located, are both right-angled triangles.
As a still further scheme of the utility model: the cross section of the oil storage ring at the axis of the web plate is a right-angled triangle.
As a still further scheme of the utility model: the oil storage ring is made of polyurethane sponge.
As a still further scheme of the utility model: the middle position department of web offers and is used for the shaft hole that the connecting axle is connected, the connecting axle with the shaft hole is interference fit grafting.
As a still further scheme of the utility model: and a heightening boss for heightening is integrally formed on one side of the web plate close to the small end of the gear ring.
Compared with the prior art, the utility model has the beneficial effects that:
when the gear runs, lubricating oil in the first annular oil storage tank and the second annular oil storage tank diffuses around under the action of centrifugal force, after the lubricating oil is absorbed and buffered by the oil storage ring, the lubricating oil flows into the tooth grooves through the first oil guide hole and the second oil guide hole respectively, because the inner diameters of the first oil guide hole and the second oil guide hole are smaller and the lubricating oil is absorbed and buffered by the oil storage ring, when the gear rotates, the oil in the first annular oil storage tank and the second annular oil storage tank slowly flows outwards, then the lubricating oil repeatedly passes through the oil storage tank under the liquid level of the lubricating oil, the lubricating oil always flows in the first oil guide hole and the second oil guide hole and is continuously lubricated, the lubricating oil also flows in the tooth grooves above the liquid level of the lubricating oil, meshing points of the gear are lubricated, the abrasion is reduced, and the precision is improved.
Drawings
FIG. 1 is a schematic structural diagram of a high-precision aircraft engine gear;
FIG. 2 is a schematic view of the installation position of a connecting shaft in a high-precision aircraft engine gear;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;
FIG. 4 is an enlarged view of the point A in FIG. 3;
fig. 5 is a schematic structural diagram of an oil storage ring in a high-precision aircraft engine gear.
In the figure: 1. a web; 11. a toothed ring; 12. a connecting shaft; 13. an oil storage ring; 14. heightening the boss; 101. a shaft hole; 102. a first annular oil reservoir; 103. a first mounting groove; 104. a first oil guide hole; 105. a second annular oil reservoir; 106. a second mounting groove; 107. the second oil guide hole.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings. In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the utility model. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
The high-precision aircraft engine gear of the example shown in connection with fig. 1-5 is intended to solve the problem of lubrication of gear teeth that are not in contact with lubricating oil when the gear is operating at high speeds. By means of the achievement of the purpose, the utility model provides the high-precision aircraft engine gear, when the gear operates, lubricating oil in the first annular oil storage groove 102 diffuses towards the periphery under the action of centrifugal force, after the lubricating oil is absorbed and buffered by the oil storage ring 13 in the first mounting groove 103, the lubricating oil flows into a tooth groove through the first oil guide hole 104, due to the fact that the inner diameter of the first oil guide hole 104 is small and the lubricating oil is absorbed and buffered by the oil storage ring 13, when the gear rotates, the lubricating oil in the first annular oil storage groove 102 flows outwards slowly, then the lubricating oil repeatedly passes through the oil storage groove under the liquid level of the lubricating oil, the lubricating oil always flows in the first oil guide hole 104 and is lubricated continuously, the lubricating oil also flows in the tooth groove above the liquid level of the lubricating oil, meshing points of the gear are lubricated, abrasion is reduced, and precision is improved.
The high-precision aircraft engine gear is particularly applied to the high-precision aircraft engine gear shown in a combined mode in figures 1 and 2. The method comprises the following steps: web 1, toothed ring 11 and connecting shaft 12.
Wherein, the web 1 is arranged at the inner side of the toothed ring 11 and used for supporting.
Further, a toothed ring 11 is arranged on the outer side of the web plate 1 and used for power transmission, a connecting shaft 12 is fixedly arranged on one side face, close to the large end of the toothed ring 11, of the web plate 1, and the connecting shaft 12 and the web plate 1 are coaxially arranged.
In an optional embodiment, the web plate 1, the gear ring 11 and the connecting shaft 12 can be made of high-strength carbon steel, the strength requirement of gear transmission of an aero-engine is met, and the gear ring 11 is arranged on the web plate 1 in an integrally forming and cutting mode, so that the requirements of installation and operation accuracy are met.
Furthermore, a shaft hole 101 for connecting the connecting shaft 12 is formed in the middle of the web 1, and the connecting shaft 12 is inserted into the shaft hole 101 in an interference fit manner.
In an optional embodiment, the connecting shaft 12 is connected with the shaft hole 101 in an interference fit manner, the connecting manner is high in precision, and workpiece deformation caused by welding is avoided.
Furthermore, a heightening boss 14 for heightening is integrally formed on one side of the web plate 1 close to the small end of the toothed ring 11.
In an optional embodiment, in the process of disassembly and assembly, when the gear needs to be placed, the heightening boss 14 is placed towards the placing surface, so that the supporting effect can be achieved, and the placing gear teeth are in contact with the placing surface to cause scratches.
Referring to fig. 3, 4 and 5, a first annular oil storage tank 102 for storing lubricating oil is disposed on a side surface of the web 1 close to the small end of the toothed ring 11, a first mounting groove 103 for placing the oil storage ring 13 is disposed on a side surface of the first annular oil storage tank 102 close to the toothed ring 11, an oil storage ring 13 for sucking lubricating oil is fixedly disposed in the first mounting groove 103, a plurality of first oil guide holes 104 for guiding flow are disposed on one side of the web 1 close to the small end of the toothed ring 11, the plurality of first oil guide holes 104 are respectively disposed on tooth grooves of the toothed ring 11, one end of each first oil guide hole 104 is communicated with the first mounting groove 103, and the other end of each first oil guide hole 104 is communicated with the tooth grooves of the toothed ring 11.
In an alternative embodiment, the depths of the first annular oil storage groove 102 and the first mounting groove 103 are both 5mm, so that a sufficient amount of lubricating oil can be stored, and the diameter of the first oil guide hole 104 is 0.8mm, so that the lubricating oil can smoothly circulate, the flow rate of the lubricating oil is small, and the lubricating oil can continuously flow.
Thus, when the gear operates, the lubricating oil in the first annular oil storage groove 102 diffuses to the periphery under the action of centrifugal force, after the lubricating oil is absorbed and buffered by the oil storage ring 13 in the first mounting groove 103, the lubricating oil flows into the tooth space through the first oil guide hole 104, because the inner diameter of the first oil guide hole 104 is small and the lubricating oil is absorbed and buffered by the oil storage ring 13, when the gear rotates, the oil in the first annular oil storage groove 102 slowly flows outwards, then repeatedly passes through the oil storage under the lubricating oil liquid level, the lubricating oil flows in the first oil guide hole 104 all the time, the lubricating oil is continuously lubricated, the lubricating oil also flows in the tooth space above the lubricating oil liquid level, the meshing point of the gear is lubricated, the abrasion is reduced, and the precision is improved.
Further, a second annular oil storage tank 105 used for storing lubricating oil is arranged on one side face, close to the large end of the toothed ring 11, of the web 1, a second installation groove 106 used for placing the oil storage ring 13 is arranged on one side face, close to the toothed ring 11, of the second annular oil storage tank 105, an oil storage ring 13 used for sucking lubricating oil is fixedly arranged in the second installation groove 106, a plurality of second oil guide holes 107 used for guiding flow are arranged on one side, close to the large end of the toothed ring 11, of the web 1, the plurality of second oil guide holes 107 are distributed on the tooth grooves of the toothed ring 11, one end of each second oil guide hole 107 is communicated with the second installation groove 106, and the other end of each second oil guide hole 107 is communicated with the tooth grooves of the toothed ring 11.
In an alternative embodiment, the depths of the second annular oil storage groove 105 and the second mounting groove 106 are both 5mm, so that a sufficient amount of lubricating oil can be stored, the diameter of the second oil guide hole 107 is 0.8mm, smooth circulation of the lubricating oil is ensured, the flow rate of the lubricating oil is small, and continuous flow of the lubricating oil is ensured.
Thus, when the gear is in operation, the lubricating oil in the second annular oil storage groove 105 diffuses to the periphery under the action of centrifugal force, after the lubricating oil is absorbed and buffered by the oil storage ring 13 in the second mounting groove 106, the lubricating oil flows into the tooth grooves through the second oil guide hole 107, because the inner diameter of the second oil guide hole 107 is small, and the lubricating oil is absorbed and buffered by the oil storage ring 13, when the gear rotates, the oil in the second annular oil storage groove 105 slowly flows outwards, then the lubricating oil repeatedly passes through the oil storage under the liquid level of the lubricating oil, the lubricating oil always flows in the second oil guide hole 107, continuous lubrication is realized, the lubricating oil also flows in the tooth grooves above the liquid level of the lubricating oil, the meshing points of the gear are lubricated, the abrasion is reduced, and the precision is improved.
Further, the cross sections of the first installation groove 103 and the second installation groove 106 at the axis of the web 1 are both right-angled triangles, the cross section of the oil storage ring 13 at the axis of the web 1 is a right-angled triangle, and the oil storage ring 13 is made of polyurethane sponge.
So, because the oil storage ring 13 elasticity of polyurethane sponge material is better, inlay oil storage ring 13 and establish back in first mounting groove 103 or second mounting groove 106, oil storage ring 13 elasticity is attached in first mounting groove 103, and the cross-section can be blocked and establish in first mounting groove 103 or second mounting groove 106 for right angled triangle's oil storage ring 13, can not take place to drop.
The working principle of the utility model is as follows: when the gear runs, the lubricating oil in the first annular oil storage groove 102 and the second annular oil storage groove 105 diffuses to the periphery under the action of centrifugal force, after the lubricating oil is absorbed and buffered by the oil storage ring 13, the lubricating oil flows into the tooth grooves through the first oil guide hole 104 and the second oil guide hole 107 respectively, because the inner diameters of the first oil guide hole 104 and the second oil guide hole 107 are smaller and the lubricating oil is absorbed and buffered by the oil storage ring 13, when the gear rotates, the oil in the first annular oil storage groove 102 and the second annular oil storage groove 105 slowly flows out, then the lubricating oil repeatedly passes through the oil storage groove under the lubricating oil liquid level, the lubricating oil always flows in the first oil guide hole 104 and the second oil guide hole 107, the lubricating oil continuously lubricates, the lubricating oil also flows in the tooth grooves above the lubricating oil liquid level, the meshing point of the gear is lubricated, the abrasion is reduced, and the precision is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.
Claims (7)
1. High accuracy aeroengine gear, its characterized in that includes:
a web (1) which is arranged on the inner side of the toothed ring (11) and is used for supporting;
the toothed ring (11) is arranged on the outer side of the web (1) and is used for power transmission;
the connecting shaft (12) is fixedly arranged on one side surface of the web plate (1) close to the large end of the gear ring (11), and the connecting shaft (12) and the web plate (1) are coaxially arranged;
the oil storage ring is characterized in that a first annular oil storage groove (102) used for storing lubricating oil is formed in one side face, close to the small end of the toothed ring (11), of the web plate (1), a first mounting groove (103) used for placing an oil storage ring (13) is formed in one side face, close to the toothed ring (11), of the first annular oil storage groove (102), the oil storage ring (13) used for sucking the lubricating oil is fixedly arranged in the first mounting groove (103), a plurality of first oil guide holes (104) used for guiding flow are formed in one side, close to the small end of the toothed ring (11), of the web plate (1), the first oil guide holes (104) are respectively arranged on tooth grooves of the toothed ring (11), one end of each first oil guide hole (104) is communicated with the first mounting groove (103), and the other end of each first oil guide hole (104) is communicated with the tooth grooves of the toothed ring (11).
2. A high-precision aircraft engine gear according to claim 1, characterized in that one side of the web (1) close to the big end of the toothed ring (11) is provided with a second annular oil storage tank (105) for storing lubricating oil, a second mounting groove (106) for placing the oil storage ring (13) is formed in one side surface, close to the gear ring (11), of the second annular oil storage groove (105), the second mounting groove (106) is internally and fixedly provided with the oil storage ring (13) for sucking lubricating oil, one side of the web plate (1) close to the large end of the toothed ring (11) is provided with a plurality of second oil guide holes (107) for guiding flow, the plurality of second oil guide holes (107) are distributed on the tooth grooves of the toothed ring (11), one end of the second oil guide hole (107) is communicated with the second mounting groove (106), the other end of the second oil guide hole (107) is communicated with a tooth groove of the gear ring (11).
3. A high-precision aircraft engine gear according to claim 2, characterized in that the cross sections of the first mounting groove (103) and the second mounting groove (106) at the axial center of the web (1) are both right-angled triangles.
4. A high-precision aeroengine gear according to claim 1, wherein the cross section of the oil storage ring (13) at the axis of the web (1) is a right triangle.
5. A high-precision aeroengine gear according to claim 1, wherein the oil-storing ring (13) is made of polyurethane sponge.
6. The high-precision aircraft engine gear according to claim 1, wherein a shaft hole (101) for connecting the connecting shaft (12) is formed in the middle of the web (1), and the connecting shaft (12) is inserted into the shaft hole (101) in an interference fit manner.
7. A high-precision aircraft engine gear according to claim 1, characterized in that a heightening boss (14) for heightening is integrally formed on one side of the web (1) close to the small end of the gear ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479273.0U CN215891002U (en) | 2021-06-30 | 2021-06-30 | High-precision aircraft engine gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479273.0U CN215891002U (en) | 2021-06-30 | 2021-06-30 | High-precision aircraft engine gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215891002U true CN215891002U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121479273.0U Active CN215891002U (en) | 2021-06-30 | 2021-06-30 | High-precision aircraft engine gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215891002U (en) |
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2021
- 2021-06-30 CN CN202121479273.0U patent/CN215891002U/en active Active
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